题目内容
() 4. My friend is good Chinese,but she is weak math.
A. at;in B. for;at
C. at;at D. in;in
4.A
4.A
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题目内容
() 4. My friend is good Chinese,but she is weak math.
A. at;in B. for;at
C. at;at D. in;in
4.A