在甲醇精馏中,提高粗甲醇的水分含量,精馏塔顶温度将()。
A、上升
B、下降
C、不变
D、二者没有关系
参考答案:C
--- Haven't I told you that I like the beef well done?
---Yes, but I _____ it longer than I usually do.
A.was cooking
B.will cook
C.cooked
D.had cooked
月末在产品燃料和动力费用为( )。
A.2092.85元
B.2448元
C.3338.18元
D.以上均不正确