对架空线路及空中设备灭火时，人体位置与带电体之间的仰角不超过（）℃。A、65 B、3

单词拼写。

1. I can't find my cat. Do you see it a ______?

2. Birds k ______ on the cage door with their beaks (喙) when they are hungry.

3. That glass is on the edge of the table. Put it in the m ______.

4. Please f ______ your dog. It is very hungry.

5. There is no milk in the bottle. It's e ______.

6. The ______ (拥有者) of these goldfish is a little girl.

7. It's ______ (必要的) for us to learn English well.

8. Look! The dog is ______ (追赶) a cat.

9. I like to keep a goldfish as a pet because it isn't any ______ (麻烦).

10. An elephant usually walks very ______ (慢).

某家电行业每年平均有3亿人购买家电，每人每年平均购买1.5台，平均每台的价格为2000元，则该家电的总市场潜量为（）。

A.3亿人

B.4.5亿台

C.6000亿元

D.9000亿元

据《素问·痿论》，肺热而致的痿证，可出现的症状是（）

A.色白而毛败

B.色赤而络脉溢

C.色黄而肉蠕动

D.色苍而爪枯

E.以上均不是

根据《MARPOL73/78》附则Ⅱ要求，《国际防止散装运输有毒液体物质污染证书》在下列哪些情况下将失效（）。

A.未经许可，对所要求的设备、结构做了重大变更

B.未进行年度检验

C.改悬另一国国旗

D.A、B、C都是

涂装是指将（）涂布清洁的被涂物表面上经干燥成膜的工艺。