题目内容
【题目】As we know, ____ knowledge is a must in ____ international trade today. ( )
A. a; / B. the; an C. the; the D. /;the
【答案】A
【解析】
略
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题目内容
【题目】As we know, ____ knowledge is a must in ____ international trade today. ( )
A. a; / B. the; an C. the; the D. /;the
【答案】A
【解析】
略