题目内容
The scientist said videophone could be used ___ the conferences.
A. into B. at C. for D. to
B
解析:
这里的at the conferences意思是:在会议上。
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题目内容
The scientist said videophone could be used ___ the conferences.
A. into B. at C. for D. to
B
这里的at the conferences意思是:在会议上。