GRE考试

根据网考网考试中心的统计分析，以下试题在2019/10/15日GRE考试习题练习中，答错率较高，为：58%
【单选题】The author regards the new means of water-use reduction under discussion as
A、wholly effective, but typically ignored
B、inexpensive, but insufficiently useful
C、promising, but difficult to implement
D、necessary, but likely to produce ill side-effects
E、universally accessible, but unnecessary
网考网参考答案：C，答错率：58%
网考网试题解析：
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