Because of ________ high demand for Type AB blood, ________ supplies of it are u - 高中英语试题 - 超级试练试题库

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题型：不详难度：来源：

Because of ________ high demand for Type AB blood, ________ supplies of it are usually limited.

A．the; the	B．不填；不填
C．不填；the	D．a; the

答案

解析

D 考察冠词。句义：由于对AB血型血液的高需求，它的供应受到限制。第一空表示泛指，第二空特指AB型血型的供应。

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试题【Because of ________ high demand for Type AB blood, ________ supplies of it are u】；主要考察你对冠词等知识点的理解。[详细]

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