高等教育 / 新发展英语综合教程（二）
There wouldn't be enough water for us if we didn't _ _ _ _ _ _ _ _ _ .
A.turn to the oceans for more water
B.reuse used water and make use of seawater
C.desalt seawater
D.take steps to reuse all water on earth
A.turn to the oceans for more water
B.reuse used water and make use of seawater
C.desalt seawater
D.take steps to reuse all water on earth
参考答案：
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