168. Today, because of improvements in agricultural technology, the same amount of acreage produces double the apples that it has in 1910. (A) double the apples that it has (B) twice as many apples as it did (C) as much as twice the apples it has (D) two times as many apples as there were (E) a doubling of the apples that it did Choice B, the best answer, correctly uses the adverbial phrase twice as many... to modify the verb produces; properly employs many rather than much to describe a quantity made up of countable units (apples); and appropriately substitutes did for the understood produced to express the logically necessary past tense of produces. Choice A awkwardly substitutes the adjective double for twice; uses that without a clear referent; and misuses has to refer to events occurring in 1910. Choice C employs the incorrect much in a wordy construction and also misuses has. D is wordy and imprecise;... as there were in 1910 refers to all apples produced in 1910, regardless of location. E is illogical: since that refers to a doubling, E nonsensically asserts that the doubling occurred in 1910.
A项中的that可以指代apples it指代acreage 不是挺好吗.为什么说 uses that without a clear referent 虚心请教nn 谢谢
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