判断题

对服务顾问走路的速度没有特殊要求()

答案：错误

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单项选择题

Tina _____ have known the truth, or she would have told us. A. Much though B. Much as C. As much D. Though much

不定项选择

裂解过程是非等温过程，为了测定方便，一般是以裂解炉反应管进口处物料温度表示裂解温度。

A．错误
B．正确