About 70% of the earth's surface is water,（） land.

Acoustic processing achieves about __% of accuracy and recall, visual processing achieves about __%, and semantic processing achieves about __%. 中国大学MOOC: Informative speech can be basically grouped into 4 categories, namely speeches about objects, about events, about processes and about concepts. Why is it important to write about a topic you are passionate about? About Charlie Chaplin, which of the following is not true about him? They talked for about an hour about the things and the persons ______they remembered in the school. When economists talk about policy assignment, what are they talking about（） —How about going to a movie tonight?— ________. What about tomorrow night?   They are still very cautious about ________ side effect the new medicine will bring about, although the experts have tried it on about 2000 patients． re still very cautious about ________side effect the new medicine will bring about, although the experts have triedit on about 2000 patients re still very cautious about ________side effect the new medicine will bring about, although the experts have triedit on about 2000 patients． About the economical crisis that he decided to look for more information about it. — _____.[ ] ______ you have known everything about it, it is unnecessary for me to talk about it again ______ about “the God Particle” that Jude decided tosearch for as much information as possible about it about（） about（） iends were talking about education, _______, about the kind of education that they received in their youth. uncertain sideeffect the medicine will bring about , though about one thousand patients havetaken it _____ are manatees?—They are about 10 feet long and weigh about 1, 000 pounds. [ ] Peter is_________ about the world around him and wants to know everything about it. About the literature of the Anglo-Norman period, the cycle of Gawain is about ____ romances.