大学英语
成人本科学位英语单项选择题每日一练(2020.09.06)
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单项选择题
Technology is to the development of the modern society a matter of()importance.
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单项选择题
The boy ran out of the classroom without the teacher's()
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单项选择题
I'd like to take()of this opportunity to thank all of you for your efforts.
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单项选择题
The ratio of the work done by the machine()the work done on it is called the efficiency of the machine.
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单项选择题
It is not surprising if in these conditions people behave aggressively towards each other;it is impossible for them to behave()
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