问题
单项选择题
波长为10mm的电波属()
A.长波
B.中波
C.短波
D.微波
答案
参考答案:D
波长为10mm的电波属()
A.长波
B.中波
C.短波
D.微波
参考答案:D
从所给的单词中选出五个补全对话。(共5小题,每小题1分)
B: Well, my family plans to go on holiday, 小题1:_________ we don’t know where to go. A: What kind of place do you want to go? B: We want to go a 小题2:__________ place. A: What about 小题3: _________ to Kunming? B: Well, we want to go to a place with the sea. A: Why not go to Dalian? It is very cool and you can play by the sea. B: It’s a good 小题4:_________. I will talk about it with my parents tonight. Thank you very much. A: You are welcome. Have a 小题5:__________ time! |