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【单选题】
目前,我们观测的宇宙是有限的,这里的有限指的是?A.
空间上的有限
B.
时间上的有限
C.
拥有边界的有限
D.
维度上的有限
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反馈参考答案：
举一反三
【单选题】--- What’s your family rules? --- We shouldn’t talk ____ food in our mouths while having meals.
A.
with
B.
in
C.
of
D.
at
【判断题】While having small talk with the visitor, remember to choose safe topics for your talk.
A.
正确
B.
错误
【判断题】While having small talk with the visitor, remember to choose safe topics for your talk.
A.
正确
B.
错误
【单选题】Small communities are disappearing with some of them having _____ from the face of the earth, while others are dying slowly
A.
vanished
B.
established
C.
approved
D.
perceived
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