Using Dr Yuang's hybrid rice, nowadays f...

Using Dr Yuang's hybrid rice, nowadays farmers are producing harvests ________ before.

A．as twice large as	B．twice as much as
C．twice as large as	D．as twice much as

B 【解析】试题分析：考查倍数表达法。倍数表达法：倍数 as 形容词的原级 as…；本题的twice就是倍数；形容词原级much修饰不可数名词，放在as…as…之中；句意：使用袁隆平的杂交水稻，现在农民的产量是以前的两倍。故B正确。考点：考查倍数表达法

考点分析：

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