【简答题】阅读理解。 There are two methods by which hydrogen (氢) can be used to power cars. The first way is to use hydrogen to drive the engine, in much the same way as many cars use gas. The second method is to us...
【简答题】录音中有五组对话和五个问题,根据你听到的对话内容和相关问题,选择最佳答案. 1.How often does Cheng watch TV? A.never B.every day C.twice a week D.I don't know. 2.Judy is not feeling well. What should she do? A.Lie down and rest B.Drink ho...