简述奥利佛小姐的性格。
参考答案：
真诚直率，少动脑筋，骄矜自负。
-------There were already five people in the car but they managed to take me as well .
------- It ______ a comfortable journey .
A．can’t be
B．shouldn’t be
C．mustn’t have been
D．couldn’t have been
请简述温度对精馏塔操作的影响因素有哪些？
