复合投影片一般不超过几张投影片()
A.3
B.4
C.5
D.6
参考答案:B
- You look exhausted!
- I __________ tennis with my friend all the morning.
A.played
B.had played
C.have been playing
D.will play
台军作战指导思想中有限压制滞敌攻势的内容是什么?