题目内容
【题目】They teach us English _______we teach them Chinese, we help each other. ( )
A. but B. and C. or D. as
【答案】B
【解析】
略
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题目内容
【题目】They teach us English _______we teach them Chinese, we help each other. ( )
A. but B. and C. or D. as
【答案】B
【解析】
略