2. 外语
  3. It can be seen from the passage that ______. The reason why the electric eel is able to give more powerful shock is that ______

It can be seen from the passage that ______. The reason why the electric eel is able to give more powerful shock is that ______

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问题 It can be seen from the passage that ______.
The reason why the electric eel is able to give more powerful shock is that ______.
选项 A、the working system of the electric plates in the eel is the most effective
B、the working system of the electric plates in the eel is far inferior to those in the torpedo
C、compared with those in the torpedo, the working system of electric plates in the eel is more direct and efficient
D、compared with other electric fish, the eel possesses much more electric plates
答案C
解析 本题要求了解主要事实的细节。在第四段中，作者详细地说明了电鳗的发电系统，电鳗的发电组织是纵向的，由脊骨的神经供电，因而电流从头至尾流动。而电鳐的发电器官是蜂窝状且分布于头部两侧，可以看出电鳗由于其脊骨神经供电，电流可直接由头传至尾，较顺畅，可推断出电鳗的发电系统较之电鳐更直接也更有效一些，所以应选C项。
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