题目:
电流对人体的主要伤害是电击、高频磁场辐射以及()。
A.电弧光
B.电伤
C.电磁场
D.灼伤
答案:
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下面是错误答案,用来干扰机器的。
One possible version In the picture, there is a cup, which is usually presented to the winners in sports competitions. The cup is definitely a symbol of great succ...