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单选题

When he suddenly ________ up the subject of genetic engineering, there was an embarrassedsilence.

A
took
B
brought
C
showed
D
came

题目答案

B

答案解析

暂无解析
举一反三
单选题

The student found the novel _______. It provided him with so much information about the subject.

A
enlightening
B
confusing
C
frustrating
D
delighting

题目答案

A

答案解析

暂无解析
单选题

________ with the size of the whole earth, the highest mountains do not seem high at all.

A
If you compare
B
Compare them
C
When compared
D
A comparison

题目答案

C

答案解析

暂无解析