2. 外语
  3. To improve the ______is regarded as a good method to increase the farmer’s income in the south part of the country.

To improve the ______is regarded as a good method to increase the farmer’s income in the south part of the country.

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问题 To improve the ______is regarded as a good method to increase the farmer’s income in the south part of the country.
选项 A、sewage
B、drainage
C、aqueduct
D、archway
答案B
解析 句意：在这个国家的南部，改善排水系统被认为是增加农民收入的一个好办法。sewage和drainage都表示“下水道，排水管”，但sewage主要是指家庭或工厂的排污水道，一般埋在地下；drainage指把某地积水排走的一系列源道或者管道。aqueduct表示“沟渠，渡槽”；archway常指建筑物的“拱道和拱廊"。故选B。
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