用place构成的短语的适当形式填空

1. Nowadays we often use plastics       wood or metal.  

2. Your remarks were a bit         .  

3. Nylon has       cotton in making some textiles(纺织品).   

4. I don't think your proposal quite           .  

5. When all the people               , the professor began his speech.

对于洋地黄的评价，不正确的是（）

A.改善症状

B.提高生存率

C.减少住院时间

D.增加心排血量

E.提高运动耐量