【題目】Scientists and doctors across the world have done _____ research over the years, hoping to find a cure for cancer.

A. a great deal of B. quantity of

C. quite a few D. a large number of

【答案】A

【解析】

試題分析：考查短語辨析。A. 大量的，后接不可數(shù)名詞 B. 大量的，應(yīng)為a quantity of，后接可數(shù)或不可數(shù)名詞C. 相當多，后接名詞復(fù)數(shù) D.大量的，后接可數(shù)名詞復(fù)數(shù)形式。research在句中是不可數(shù)名詞。句意：全世界的科學(xué)家和醫(yī)生在這些年來做了大量研究，希望能找到治愈癌癥的方法。故選A。

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