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题目

This river is so big that it is impossible to build a _______ under it without modern technology.A. canalB. tunnelC. channelD. cable

This river is so big that it is impossible to build a _______ under it without modern technology.

A. canal
B. tunnel
C. channel
D. cable

题目解答

答案

B

解析

本题考查名词辨析。根据句意，这条河如此之大，没有现代技术是不可能在它下面建造一个隧道的。选项中，A. canal 水渠；B. tunnel 隧道；C. channel 水道；D. cable 电缆。根据题意，只有隧道（tunnel）可以建在河底，其他选项不符合题意。

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