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【单选题】
OSI 将计算机网络体系结构的通信协议规定为( )。A.
5 层
B.
6 层
C.
7 层
D.
8 层
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反馈参考答案：
举一反三
【判断题】If the differences of the goods fall within the scope of quality tolerance, the buyer shall have no right to reject them or ask for adjusting the price.
A.
正确
B.
错误
【单选题】—Our family will go to Australia for a holiday. —Oh, really? That sounds __________!
A.
fantastic
B.
fragile
C.
flexible
D.
fragrant
【简答题】A．Both the man and the woman have no time to look at the gift. B．The man can't imagine what his friends get for him. C．The man already knows what Betty will say. D．The man is anxious to see Betty's re...
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