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问题 单项选择题

郊区0.4kY室外架空线路应采用（），导线截面统一选用35、70、95、120mm2四种规格。

A．铜绞线

B．钢芯铝绞线

C．铝绞线

D．多芯铝绞绝缘导线

答案

参考答案：D

解答题
计算：(-
1
2
)-2+2sin60°-
1
3
-2
．
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填空题

用所给动词的正确形式填空。

1. If you want to learn English well, you should practise _________ (speak) English.

2. I spend two hours _________(do) my homework.

3. Hobo needs Eddie _________(carry) all the shopping bags.

4. I don't like _________(eat) hamburgers because they can make me fat.

5. My mother has a bad cold. She is __________(lie) in bed.
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