转载台在自然坡面形成时，运矿汽车后轮与挡墙（）作业。 A.平行

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问题单项选择题

转载台在自然坡面形成时，运矿汽车后轮与挡墙（）作业。

A.平行

B.倾斜

C.垂直

D.交叉

答案

参考答案：C

单项选择题

Which of the following statements represents a major principle of chronic pain management

A．A physiologic approach is most effective.

B．A psychological approach is most effective.

C．A pharmacologic approach is most effective.

D．A multidisciplinary approach is most effective.

判断题

有接头的钢丝绳可以用于立井提升。