The need for regular exchange of information on food safety issues is __________ when a food safety related event emerges.回答　A. unnecessary 　B. urgent 　C. unimportant

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题目内容（国家开放大学管理英语3.）

The need for regular exchange of information on food safety issues is __________ when a food safety related event emerges.回答

　A. unnecessary

　B. urgent

　C. unimportant

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