Itcanbeinferredfromthepassagethatthelongeraneelisthe
Amorebeneficialitwillbetoscience
Bmorepowerfulitselectr icalchargewillbe
Ceasieritwillbetofind
Dtougheritwillbetoeat
答案及解析:最后一段最后一句话说“电鳗发出的电流的强度大约和它身体的长度成正比”。

Itcanbeinferredfromthepassagethatthelongeraneelisthe
Amorebeneficialitwillbetoscience
Bmorepowerfulitselectr icalchargewillbe
Ceasieritwillbetofind
Dtougheritwillbetoeat
答案及解析:最后一段最后一句话说“电鳗发出的电流的强度大约和它身体的长度成正比”。
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