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问题 多项选择题

某路段填隙碎石底基层备料时，计算该段所需的粗碎石体积数量不***数有（）。

A.底基层宽度

B.底基层厚度

C.运料车辆的车厢体积

D.松铺系数

E.粗碎石的含水量

答案

参考答案：A, B

单项选择题

The parents report that the child has a runny nose, fever, cough, and is irritable and constantly rubbing his ears. Which findings of the tympanic membrane would the nurse would expect to see

A．Bulging and red.

B．Clear and inverted.

C．Pearly gray.

D．Scarred.
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单项选择题

金瓷冠基底冠的金瓷衔接处的角度为

A．5°
B．30°
C．45°
D．90°
E．135°
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