题目内容

___ do you visit your grandma? Twice a month.

A. How often
B. How soon
C. How long
D. How fast

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He got up ___ that he missed the plane.

A. too late
B. very late
C. so late
D. much later

Could you tell me the ____ for the Sales Department and the Marketing Department?

A. telephone's numbers
B. telephone numbers
C. telephones numbers
D. numbers of telephones

下列哪些气体近似可看作理想气体？

A. 柴油机起动空气瓶中的高压气体
B. 动力机内的水蒸气
C. 空调设备中空气所含水蒸气
D. 冰箱压缩机内的制冷剂气体

理想气体可逆吸热过程，下列哪个参数一定增加？（）

A. 热力学能
B. 熵
C. 温度
D. 压力