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题目内容
（国家开放大学报关实务）
They have ____ us that you are ____ the market ____ chemicals.
A.inform, in, on
B.informed, in, for
C.advise, in, on
D.advised, in, of
A.inform, in, on
B.informed, in, for
C.advise, in, on
D.advised, in, of
参考答案
