根据句意及首字母提示写单词。

1.  These apples     _     3 pounds.  Can you help me carry them'?

2.  He tried his best to______ the girl out of the river.

3.  The cages are too     _    for animals to move in the zoo.

4.  The earth is one of the sun's           .

5.  —Who is the first ______of the USA?

     —Washington.

6.  On the table there is a ______  plane.  I bought it when I first took a plane last year.

7.  Smoking is not allowed in ______ places, such as shopping malls and hospital.

8.  There are many new words and ______ in the passage.  I can't understand it.

9.  We should use fewer and fewer ______ bags to protect the environment.

10.  On Monday morning we watch our national     _    rise.

临产后观察先露下降程度的标志是（）。

A.骶岬

B.坐骨棘水平

C.坐骨结节平面

D.坐骨切迹

E.骶尾关节