医学专著是什么意思:they believed that by using computers the production of their factory____.

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A will greatly increased B has greatly increased C would be increased greatly D had been greatly increased 为什么选C? increase在这里能用被动语态?

产量不会自己提高
只能被提高
所以有by using computers 方式状语提前
they believed that the production of their factory
(C would be increased greatly )by using computers .

C,最简单的判定是时态,主句过去时从句过去将来时
increase可以用被动语态

C 意思是他们相信使用电脑能使他们的工厂提高产量,是将来时,是对将来的估计.

C 可以 是说他们工厂产品会被他们提高.

C