They have produced _______ they did last year.A．twice more grain asB．twice as mu

题干

They have produced _______ they did last year.

A．twice more grain as	B．twice as much grain as
C．twice as many grain as	D．as twice many grain as

上一题下一题 0.64难度单项选择更新时间:2012-08-09 02:49:55

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