The main theme of the talk is about
A. noise-control technology.
B. noise in factories.
C. noise-control regulations.
D. noise-related effects.
查看答案
Of all the inventions, ______ was probably the most important for civilization.
A. the vote recorder
B. the stack ticker
C. the light bulb
D. the motion picture camera
《麦琪的礼物》的结构特点之一是“一实一虚双线并行”，其中的实线是（）
A. 德拉因无钱给丈夫买礼物而哭泣
B. 德拉卖掉美发给丈夫买表链
C. 吉姆卖掉金表给妻子买发梳
D. 吉姆看到妻子剪发大为惊愕
A．We shouldn't blame a person if he fails to act in emergencies.B．A person must feel g
A. We shouldn't blame a person if he fails to act in emergencies.
B. A person must feel guilty if he fails to help.
C. People should be responsible for themselves in emergencies.
D. When you are in trouble, people will help you anyway.
A．With the lifestyle. becoming fast, people don't care about good food.B．People in the
A. With the lifestyle. becoming fast, people don't care about good food.
B. People in the same family have almost the same eating habits.
C. New food preparation technology has given ns greater variety.
D. Parents want their children to be picky.
微信支付 
支付宝支付