An engineer has designed robot that can work in deep sea to clean waste.A. a; theB. a; a

发布时间:2020-08-16 19:00:22

An engineer has designed      robot that can work in      deep sea to clean waste.
A. a; the
B. a; a
C. /; the
D. the; /

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(答案→)A. a; the
B. a; a
C. /; the
D. the; /
解析:这题考查冠词;第一空填a,泛指“一个机器人”,第二空填the,特指“在深海”,句意是:一个工程师发明的一个机器人可以在深海工作清除废物的。选A。
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