色温越高，光源越偏黄;色温越低，光源越偏红。()

A: the main feature of the Audiolingual Method①emphasis on the teaching of listening and speaking before reading and writing②emphasis on certain practice techniques: mimicry, memorization and pattern drills③much use of tapes,language labs and visual aids④tendency to manipulate language and disregard content⑤little or no grammatical explanationB: the advantage or disadvantage associated with the feature 点击查看答案

古巴比伦的天文学利用了数学方法，反之也促进了数学的发展。() 点击查看答案&解析