PT 58 1/1 (09/09)

lily88888UID: 2828533

Commentator: Although the present freshwater supply is adequate for today's patterns of water use, the human population will increase substantially over the next few decades, drastically increasing the need for freshwater. Hence, restrictions on water use will be necessary to meet the freshwater needs of humankind in not-too-distant future.

Which one of the following is an assumption required by the argument?

C. The freshwater supply will not increase sufficiently to meet the increased needs of humankind. (OA)
D. No attempt to synthesize water will have an appreciable effect on the quantity of freshwater available.
E. No water conservation measure previously attempted yielded an increase in the supply of freshwater available for human use.

I picked C. Do you think D or E is OK if without C? How to translate D?没有合成水的尝试能够显著提高淡水的数量。

duijinxiaoziUID: 2585955

D:
没有试图合成水，将对可用淡水的数量，产生可观的效果。
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“Hence”，所以，要根据前面，推出结果。