看图完成答句，一空一词。

1. How many people can you see in the picture?

    I can see two ______ and two ______.

2. Where are these people? 

    They are in the ______, because there is a ______ on the wall.

3. Where is the plant?

     It's ______ the ______.

4. Who has straight long hair?

    The second student ______ the ______.

5. Who wears a cap?

    The ______ student standing ______ a girl.

在第十一届全运会男子举重56公斤级比赛中，龙清泉以302公斤的总成绩获得冠军，并以169公斤超该级别挺举世界纪录．如图所示，设龙清泉所举杠铃的总重为G，杠铃平衡时每只手臂与竖直线所成的夹角为30°，则他每只手臂承受的张力为（　　）

A．

B．

C．

D．G