.compass

His compass proved___to him when he was lost in an unknown country. 对于独立于HGIS（PASS、COMPASS）安装的设备应按（）式设备统计。 Thousands of years ago people discovered the phenomenon by chance, and this was _____ the idea of the compass first came from. It seems that pigeons have a compass inside them that tells them _____ they need to go. That is why they never get lost. 中国大学MOOC: The first compass, called a sinan (south-pointing ladle) was invented during the Western Zhou Dynasty. The Chinese Four Great Inventions (paper making, printing, gunpowder and compass) as well as the skills of silkworm breeding and silk spinning were transmitted to the West. Surprises______: three-season riverfront beach bars, nightlife that"s among Europe"s best, and low-rise______that reward wanderers who use the city"s dozens of old steeples as compass points. GPS模块和指南针Compass模块，用于精确确定飞行器的方向及经纬度。对于失控保护自动返航，精准定位悬停等功能的实现至关重要（） Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)　　Today, we live in a world where GPS systems, digital maps, and other navigation apps are available on our smartphones. (1) _____ of us just walk straight into the woods without a phone. But phones (2) _____ on batteries, and batteries can die faster than we realize. (3) _____ you get lost without a phone or a compass, and you (4) _____ can’t find north, a few tricks may help you navigate (5) _____ to civilization, one of which is to follow the land.　　When you find yourself well (6) _____ a trail, but not in a completely (7) _____ area, you have to answer two questions: Which (8) _____ is downhill, in this particular area? And where is the nearest water source? Humans overwhelmingly live in valleys, and on supplies of fresh water. (9) _____, if you head downhill, and follow any H2O you find, you should (10) _____ see signs of people.　　If you’ve explored the area before, keep an eye out for familiar sights—you may be (11) _____ how quickly identifying a distinctive rock or tree can restore your bearings.　　Another (12) _____: Climb high and look for signs of human habitation. (13) _____, even in dense forest, you should be able to (14) _____ gaps in the tree line due to roads, train tracks, and other paths people carve (15) _____ the woods. Head toward these (16) _____ to find a way out. At night, scan the horizon for (17) _____ light sources, such as fires and streetlights, then walk toward the glow of light pollution.　　(18) _____, assuming you’re lost in an area humans tend to frequent, look for the (19) _____ we leave on the landscape. Trail blazes, tire tracks, and other features can (20) _____ you to civilization. Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)　　Today, we live in a world where GPS systems, digital maps, and other navigation apps are available on our smartphones. (1) _____ of us just walk straight into the woods without a phone. But phones (2) _____ on batteries, and batteries can die faster than we realize. (3) _____ you get lost without a phone or a compass, and you (4) _____ can’t find north, a few tricks may help you navigate (5) _____ to civilization, one of which is to follow the land.　　When you find yourself well (6) _____ a trail, but not in a completely (7) _____ area, you have to answer two questions: Which (8) _____ is downhill, in this particular area? And where is the nearest water source? Humans overwhelmingly live in valleys, and on supplies of fresh water. (9) _____, if you head downhill, and follow any H2O you find, you should (10) _____ see signs of people.　　If you’ve explored the area before, keep an eye out for familiar sights—you may be (11) _____ how quickly identifying a distinctive rock or tree can restore your bearings.　　Another (12) _____: Climb high and look for signs of human habitation. (13) _____, even in dense forest, you should be able to (14) _____ gaps in the tree line due to roads, train tracks, and other paths people carve (15) _____ the woods. Head toward these (16) _____ to find a way out. At night, scan the horizon for (17) _____ light sources, such as fires and streetlights, then walk toward the glow of light pollution.　　(18) _____, assuming you’re lost in an area humans tend to frequent, look for the (19) _____ we leave on the landscape. Trail blazes, tire tracks, and other features can (20) _____ you to civilization. Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)　　Today, we live in a world where GPS systems, digital maps, and other navigation apps are available on our smartphones. (1) _____ of us just walk straight into the woods without a phone. But phones (2) _____ on batteries, and batteries can die faster than we realize. (3) _____ you get lost without a phone or a compass, and you (4) _____ can’t find north, a few tricks may help you navigate (5) _____ to civilization, one of which is to follow the land.　　When you find yourself well (6) _____ a trail, but not in a completely (7) _____ area, you have to answer two questions: Which (8) _____ is downhill, in this particular area? And where is the nearest water source? Humans overwhelmingly live in valleys, and on supplies of fresh water. (9) _____, if you head downhill, and follow any H2O you find, you should (10) _____ see signs of people.　　If you’ve explored the area before, keep an eye out for familiar sights—you may be (11) _____ how quickly identifying a distinctive rock or tree can restore your bearings.　　Another (12) _____: Climb high and look for signs of human habitation. (13) _____, even in dense forest, you should be able to (14) _____ gaps in the tree line due to roads, train tracks, and other paths people carve (15) _____ the woods. Head toward these (16) _____ to find a way out. At night, scan the horizon for (17) _____ light sources, such as fires and streetlights, then walk toward the glow of light pollution.　　(18) _____, assuming you’re lost in an area humans tend to frequent, look for the (19) _____ we leave on the landscape. Trail blazes, tire tracks, and other features can (20) _____ you to civilization. Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)　　Today, we live in a world where GPS systems, digital maps, and other navigation apps are available on our smartphones. (1) _____ of us just walk straight into the woods without a phone. But phones (2) _____ on batteries, and batteries can die faster than we realize. (3) _____ you get lost without a phone or a compass, and you (4) _____ can’t find north, a few tricks may help you navigate (5) _____ to civilization, one of which is to follow the land.　　When you find yourself well (6) _____ a trail, but not in a completely (7) _____ area, you have to answer two questions: Which (8) _____ is downhill, in this particular area? And where is the nearest water source? Humans overwhelmingly live in valleys, and on supplies of fresh water. (9) _____, if you head downhill, and follow any H2O you find, you should (10) _____ see signs of people.　　If you’ve explored the area before, keep an eye out for familiar sights—you may be (11) _____ how quickly identifying a distinctive rock or tree can restore your bearings.　　Another (12) _____: Climb high and look for signs of human habitation. (13) _____, even in dense forest, you should be able to (14) _____ gaps in the tree line due to roads, train tracks, and other paths people carve (15) _____ the woods. Head toward these (16) _____ to find a way out. At night, scan the horizon for (17) _____ light sources, such as fires and streetlights, then walk toward the glow of light pollution.　　(18) _____, assuming you’re lost in an area humans tend to frequent, look for the (19) _____ we leave on the landscape. Trail blazes, tire tracks, and other features can (20) _____ you to civilization. Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)　　Today, we live in a world where GPS systems, digital maps, and other navigation apps are available on our smartphones. (1) _____ of us just walk straight into the woods without a phone. But phones (2) _____ on batteries, and batteries can die faster than we realize. (3) _____ you get lost without a phone or a compass, and you (4) _____ can’t find north, a few tricks may help you navigate (5) _____ to civilization, one of which is to follow the land.　　When you find yourself well (6) _____ a trail, but not in a completely (7) _____ area, you have to answer two questions: Which (8) _____ is downhill, in this particular area? And where is the nearest water source? Humans overwhelmingly live in valleys, and on supplies of fresh water. (9) _____, if you head downhill, and follow any H2O you find, you should (10) _____ see signs of people.　　If you’ve explored the area before, keep an eye out for familiar sights—you may be (11) _____ how quickly identifying a distinctive rock or tree can restore your bearings.　　Another (12) _____: Climb high and look for signs of human habitation. (13) _____, even in dense forest, you should be able to (14) _____ gaps in the tree line due to roads, train tracks, and other paths people carve (15) _____ the woods. Head toward these (16) _____ to find a way out. At night, scan the horizon for (17) _____ light sources, such as fires and streetlights, then walk toward the glow of light pollution.　　(18) _____, assuming you’re lost in an area humans tend to frequent, look for the (19) _____ we leave on the landscape. Trail blazes, tire tracks, and other features can (20) _____ you to civilization. Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)　　Today, we live in a world where GPS systems, digital maps, and other navigation apps are available on our smartphones. (1) _____ of us just walk straight into the woods without a phone. But phones (2) _____ on batteries, and batteries can die faster than we realize. (3) _____ you get lost without a phone or a compass, and you (4) _____ can’t find north, a few tricks may help you navigate (5) _____ to civilization, one of which is to follow the land.　　When you find yourself well (6) _____ a trail, but not in a completely (7) _____ area, you have to answer two questions: Which (8) _____ is downhill, in this particular area? And where is the nearest water source? Humans overwhelmingly live in valleys, and on supplies of fresh water. (9) _____, if you head downhill, and follow any H2O you find, you should (10) _____ see signs of people.　　If you’ve explored the area before, keep an eye out for familiar sights—you may be (11) _____ how quickly identifying a distinctive rock or tree can restore your bearings.　　Another (12) _____: Climb high and look for signs of human habitation. (13) _____, even in dense forest, you should be able to (14) _____ gaps in the tree line due to roads, train tracks, and other paths people carve (15) _____ the woods. Head toward these (16) _____ to find a way out. At night, scan the horizon for (17) _____ light sources, such as fires and streetlights, then walk toward the glow of light pollution.　　(18) _____, assuming you’re lost in an area humans tend to frequent, look for the (19) _____ we leave on the landscape. Trail blazes, tire tracks, and other features can (20) _____ you to civilization. Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)　　Today, we live in a world where GPS systems, digital maps, and other navigation apps are available on our smartphones. (1) _____ of us just walk straight into the woods without a phone. But phones (2) _____ on batteries, and batteries can die faster than we realize. (3) _____ you get lost without a phone or a compass, and you (4) _____ can’t find north, a few tricks may help you navigate (5) _____ to civilization, one of which is to follow the land.　　When you find yourself well (6) _____ a trail, but not in a completely (7) _____ area, you have to answer two questions: Which (8) _____ is downhill, in this particular area? And where is the nearest water source? Humans overwhelmingly live in valleys, and on supplies of fresh water. (9) _____, if you head downhill, and follow any H2O you find, you should (10) _____ see signs of people.　　If you’ve explored the area before, keep an eye out for familiar sights—you may be (11) _____ how quickly identifying a distinctive rock or tree can restore your bearings.　　Another (12) _____: Climb high and look for signs of human habitation. (13) _____, even in dense forest, you should be able to (14) _____ gaps in the tree line due to roads, train tracks, and other paths people carve (15) _____ the woods. Head toward these (16) _____ to find a way out. At night, scan the horizon for (17) _____ light sources, such as fires and streetlights, then walk toward the glow of light pollution.　　(18) _____, assuming you’re lost in an area humans tend to frequent, look for the (19) _____ we leave on the landscape. Trail blazes, tire tracks, and other features can (20) _____ you to civilization. Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)　　Today, we live in a world where GPS systems, digital maps, and other navigation apps are available on our smartphones. (1) _____ of us just walk straight into the woods without a phone. But phones (2) _____ on batteries, and batteries can die faster than we realize. (3) _____ you get lost without a phone or a compass, and you (4) _____ can’t find north, a few tricks may help you navigate (5) _____ to civilization, one of which is to follow the land.　　When you find yourself well (6) _____ a trail, but not in a completely (7) _____ area, you have to answer two questions: Which (8) _____ is downhill, in this particular area? And where is the nearest water source? Humans overwhelmingly live in valleys, and on supplies of fresh water. (9) _____, if you head downhill, and follow any H2O you find, you should (10) _____ see signs of people.　　If you’ve explored the area before, keep an eye out for familiar sights—you may be (11) _____ how quickly identifying a distinctive rock or tree can restore your bearings.　　Another (12) _____: Climb high and look for signs of human habitation. (13) _____, even in dense forest, you should be able to (14) _____ gaps in the tree line due to roads, train tracks, and other paths people carve (15) _____ the woods. Head toward these (16) _____ to find a way out. At night, scan the horizon for (17) _____ light sources, such as fires and streetlights, then walk toward the glow of light pollution.　　(18) _____, assuming you’re lost in an area humans tend to frequent, look for the (19) _____ we leave on the landscape. Trail blazes, tire tracks, and other features can (20) _____ you to civilization. Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)　　Today, we live in a world where GPS systems, digital maps, and other navigation apps are available on our smartphones. (1) _____ of us just walk straight into the woods without a phone. But phones (2) _____ on batteries, and batteries can die faster than we realize. (3) _____ you get lost without a phone or a compass, and you (4) _____ can’t find north, a few tricks may help you navigate (5) _____ to civilization, one of which is to follow the land.　　When you find yourself well (6) _____ a trail, but not in a completely (7) _____ area, you have to answer two questions: Which (8) _____ is downhill, in this particular area? And where is the nearest water source? Humans overwhelmingly live in valleys, and on supplies of fresh water. (9) _____, if you head downhill, and follow any H2O you find, you should (10) _____ see signs of people.　　If you’ve explored the area before, keep an eye out for familiar sights—you may be (11) _____ how quickly identifying a distinctive rock or tree can restore your bearings.　　Another (12) _____: Climb high and look for signs of human habitation. (13) _____, even in dense forest, you should be able to (14) _____ gaps in the tree line due to roads, train tracks, and other paths people carve (15) _____ the woods. Head toward these (16) _____ to find a way out. At night, scan the horizon for (17) _____ light sources, such as fires and streetlights, then walk toward the glow of light pollution.　　(18) _____, assuming you’re lost in an area humans tend to frequent, look for the (19) _____ we leave on the landscape. Trail blazes, tire tracks, and other features can (20) _____ you to civilization. Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)　　Today, we live in a world where GPS systems, digital maps, and other navigation apps are available on our smartphones. (1) _____ of us just walk straight into the woods without a phone. But phones (2) _____ on batteries, and batteries can die faster than we realize. (3) _____ you get lost without a phone or a compass, and you (4) _____ can’t find north, a few tricks may help you navigate (5) _____ to civilization, one of which is to follow the land.　　When you find yourself well (6) _____ a trail, but not in a completely (7) _____ area, you have to answer two questions: Which (8) _____ is downhill, in this particular area? And where is the nearest water source? Humans overwhelmingly live in valleys, and on supplies of fresh water. (9) _____, if you head downhill, and follow any H2O you find, you should (10) _____ see signs of people.　　If you’ve explored the area before, keep an eye out for familiar sights—you may be (11) _____ how quickly identifying a distinctive rock or tree can restore your bearings.　　Another (12) _____: Climb high and look for signs of human habitation. (13) _____, even in dense forest, you should be able to (14) _____ gaps in the tree line due to roads, train tracks, and other paths people carve (15) _____ the woods. Head toward these (16) _____ to find a way out. At night, scan the horizon for (17) _____ light sources, such as fires and streetlights, then walk toward the glow of light pollution.　　(18) _____, assuming you’re lost in an area humans tend to frequent, look for the (19) _____ we leave on the landscape. Trail blazes, tire tracks, and other features can (20) _____ you to civilization. Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)　　Today, we live in a world where GPS systems, digital maps, and other navigation apps are available on our smartphones. (1) _____ of us just walk straight into the woods without a phone. But phones (2) _____ on batteries, and batteries can die faster than we realize. (3) _____ you get lost without a phone or a compass, and you (4) _____ can’t find north, a few tricks may help you navigate (5) _____ to civilization, one of which is to follow the land.　　When you find yourself well (6) _____ a trail, but not in a completely (7) _____ area, you have to answer two questions: Which (8) _____ is downhill, in this particular area? And where is the nearest water source? Humans overwhelmingly live in valleys, and on supplies of fresh water. (9) _____, if you head downhill, and follow any H2O you find, you should (10) _____ see signs of people.　　If you’ve explored the area before, keep an eye out for familiar sights—you may be (11) _____ how quickly identifying a distinctive rock or tree can restore your bearings.　　Another (12) _____: Climb high and look for signs of human habitation. (13) _____, even in dense forest, you should be able to (14) _____ gaps in the tree line due to roads, train tracks, and other paths people carve (15) _____ the woods. Head toward these (16) _____ to find a way out. At night, scan the horizon for (17) _____ light sources, such as fires and streetlights, then walk toward the glow of light pollution.　　(18) _____, assuming you’re lost in an area humans tend to frequent, look for the (19) _____ we leave on the landscape. Trail blazes, tire tracks, and other features can (20) _____ you to civilization. Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)　　Today, we live in a world where GPS systems, digital maps, and other navigation apps are available on our smartphones. (1) _____ of us just walk straight into the woods without a phone. But phones (2) _____ on batteries, and batteries can die faster than we realize. (3) _____ you get lost without a phone or a compass, and you (4) _____ can’t find north, a few tricks may help you navigate (5) _____ to civilization, one of which is to follow the land.　　When you find yourself well (6) _____ a trail, but not in a completely (7) _____ area, you have to answer two questions: Which (8) _____ is downhill, in this particular area? And where is the nearest water source? Humans overwhelmingly live in valleys, and on supplies of fresh water. (9) _____, if you head downhill, and follow any H2O you find, you should (10) _____ see signs of people.　　If you’ve explored the area before, keep an eye out for familiar sights—you may be (11) _____ how quickly identifying a distinctive rock or tree can restore your bearings.　　Another (12) _____: Climb high and look for signs of human habitation. (13) _____, even in dense forest, you should be able to (14) _____ gaps in the tree line due to roads, train tracks, and other paths people carve (15) _____ the woods. Head toward these (16) _____ to find a way out. At night, scan the horizon for (17) _____ light sources, such as fires and streetlights, then walk toward the glow of light pollution.　　(18) _____, assuming you’re lost in an area humans tend to frequent, look for the (19) _____ we leave on the landscape. Trail blazes, tire tracks, and other features can (20) _____ you to civilization.