题目内容
（请给出正确答案）
[主观题]
The author regards the new means of water-use reduction under discussion asA．wholly effect
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
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