【題目】For some areas, how to get clean water is a major problem.

A. real B. main C. difficult

【答案】B

【解析】

句意對于一些地區(qū),如何獲得清潔的水是一個主要問題。major 是“主要的意思。A. real 真是的;B. main 主要的;C. difficult困難的。故選B。

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