Engineering is challenging course of study that requires thoroughunderstanding of mathematics and science.A．the; aB．a; theC．不填,不填D．a; a 题目和参考答案——青夏教育精英家教网—

题目内容

Engineering is ______ challenging course of study that requires ______ thoroughunderstanding of mathematics and science.

A．the; a

B．a; the

C．不填；不填

D．a; a

试题分析：考查冠词的用法区别。第一空course是课程，前面有challenging修饰，故表示泛指；第二空表示对某物的理解，understanding前加a,故D正确。

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