当温度小于临界温度且压力等于饱和蒸气压时,一般的立方型状态方程有()个。 A.1 B 发布时间:2018-06-13 01:50 │ 来源:www.tikuol.com 题型:单项选择题 问题: 当温度小于临界温度且压力等于饱和蒸气压时,一般的立方型状态方程有()个。A.1B.2C.3D.4
题型:单项选择题 —Must I finish the work before five o'clock? —No, you _____. [ ]A. needn't B. mustn't C. have to D. don't 查看答案