事故氯处理装置中，应控制吸收塔内的碱液温度在40℃以下。
参考答案：错
— Is John coming by train?
— He should, but he _____ not. He likes driving his car.[ ]
A. must
B. can
C. need
D. may
核定位信号区别与信号肽的特点是什么？
