单选题
It is dangerous to put iron wire in socket(插座). Which of the following explains why this is so?
A、
The iron wire picks up electrical charges.
B、
The strands begin to bristle with electricity.
C、
As rain wet the string, it conducted more electricity.
D、
Franklin might have been killed by a bolt of lightenin
【正确答案】
A
【答案解析】
[分析] 本题测试点为对文章细节的掌握。参见文中第五句：“铁丝可以获得电荷”。因此把铁丝插入电插头中是危险的。故选A。
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