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题目内容
（国家开放大学商务英语3）
What does “maintain” mean in the sentence “we build and maintain relationships with different kinds of people”?
选择一项：
A.
Stand up.
B.
Give up.
C.
Keep up.
选择一项：
A.
Stand up.
B.
Give up.
C.
Keep up.
参考答案