题目内容

八路数据分配器,其数据输入端有( )个。

A. 1
B. 2
C. 3
D. 8

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对于没有安全钳的对重(或平衡重)导轨,可使用成型金属板材,它们应作防腐蚀保护。

A. 对
B. 错

The sales manager of a hotel is in charge of sales promotion.

A. 对
B. 错

Room rates for groups and FIT during the peak season are the same.

A. 对
B. 错

Hotels always give preferential rates to group bookings.

A. 对
B. 错

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