用单词的适当形式填空。

1. That's Deng Yaping. She _______ (bear) in 1973.

2. She started ice _______ (skate) when she was three.

3. Stop _______ (make) so much noise! I am doing my homework.

4. I learned _______ (ride) a bicycle when I was ten years old.

5. Ronaldo played for his _______ (nation) team when he was seventeen.

根据《中国移动集团客户及宽带接入（客户侧）工程施工工艺标准》，机房内不得有水管、煤气管、暖气设备、消防喷淋设施等。确有其设施且无法避免的，必须做（）处理。

A.防虫

B.封堵

C.隔离和防渗

D.以上都不对