梯形的上底长为6，下底长为10，则它的中位线长为______．

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问题填空题

答案

∵EF是梯形ABCD（AD∥BC）的中位线，

∴EF=

（AD+BC），

∵AD=6，BC=10，

∴EF=8，

故答案为：8．

句型转换

根据上句完成下句，且使上下两句意思一致，每空一词。

1. To eat a balanced diet is very important.

________ very important ________ eat a balanced diet.

2. They are watching TV at home now.

They are watching TV at home ________ ________ ________.

3. What's wrong with your sister?

What's ________ ________ with your sister?

4. She has a sore throat.

There is something ________ ________her throat.

5. There is a lot of milk in the bottle.

There is ________ ________ milk in the bottle.

单项选择题

法人股与社会公众股目前以下股票中尚不能上市流通的是（）。

A.社会公众股

B.外资股

C.法人股

D.H股