选择题：A company must establish and maintain a(n) ______

题目内容：

A company must establish and maintain a(n) ______ quality management system in order to be successful.
A. patient
B. social
C. relative
D. efficient

参考答案：

— I was robbed when I was travelling in India.— I

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分类：中北大学大学英语（一）题型：选择题

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分类：中北大学大学英语（一）题型：选择题

习近平指出,当今世界正经历百年未有之大变局,全球治理体系深刻重塑,国际格局加速演变。()对错

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分类：中北大学大学英语（一）题型：选择题