What is the main subject of this passage? [br] Which of the following methods of

游客2025-03-21 28

问题 What is the main subject of this passage? [br] Which of the following methods of solving the water problem is NOT mentioned in the passage?

选项 A、Recycling wastewater.
B、Dry cleaning.
C、Cutting down the amount of water used.
D、Using treated sea water.

答案 D

解析是非题。在第三段中提到try and minimize the amount of water we use，在第四段中提到reuse treated wastewater，在最后一段提到dry cleaning，因此A，B和C都可排除，只有D(使用经处理的海水)没有提到，是本题答案。

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