We should produce less things from raw materials, _____ is growing smaller and s

题干

We should produce less things from raw materials, _____ is growing smaller and smaller.

A．whose supplies	B．the supply of which
C．which supply	D．the supply of whom

上一题下一题 0.64难度单项选择更新时间:2014-12-18 09:05:54

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