1970s后，民航机的发展呈现（）的特点，典型的如B747和协和飞机。

波音737属于宽体飞机、波音B747属于窄体飞机。 It was not until the 1960s and 1970s archaeologistsmade real progress in understanding the script The present crisis bears some ________（similar） to the oil erisis of the 1970s It was not until the 1960s and 1970s archaeologists made real progress in understanding the script. 1983年8月31日苏联战机击落哪一国的波音747民航机，造成机上269人全数丧生？ 客桥对接B747机型时，推蓬与舱门右边距为（）厘米。 客桥对接B747机型时，推蓬与舱门右边距为（）厘米 以下关于B747顶升杆的使用，说法错误的是哪个？（） 为满足B747所有机型的起降，飞行区指标必须是（）。 ____ 1960s, ________ number ofhabitants here is very _______ ,and it was since the middle of 1970s that thepopulation has been increasing rapidly In the 1970s, oil was discovered in ___, but the revenue from oil did not create an economic miracle for Britain. In the 1970s, an opera company _________a new production of ‘King Lear’, in which Patrick Magee starred. 日航123航班空难发生在跨洋航线上，因为用的是巨无霸飞机B747（） ____ 1960s, ________ number ofhabitants here is very _______ ,and it was since the middle of 1970s that thepopulation has been increasing rapidly. 1970S最早是由（）医生首先使用头盆环治疗病人 In the 1960s and 1970s, tennis enjoyed a huge growth as some of the new professional stars, especially women, stimulated amateurs.() 民航机开张，打一成语？ 民航机开张，打一成语？ Intel’s invention of the microprocessor in the early 1970s, Cisco’s development of the router for routing data over the Internet in the mid-1980s, and Apple’s development of the iPod, iPhone, and iPad In the 1970s, people from around the world settled in the UK to live and work, _____ food from home which attracted the British. [ ]