国家开放大学 / 综合英语（3）
正确率：100%
Why does the author mention electric eels? _ _ _ _ _ _ _ _ _ .
A.To warn the reader to stay away from them
B.To compare their voltage to that used in houses
C.To give an example of a living being generating great electricity
D.To describe a new source of electrical power
A.To warn the reader to stay away from them
B.To compare their voltage to that used in houses
C.To give an example of a living being generating great electricity
D.To describe a new source of electrical power
参考答案：
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