锅炉泵出口正常循环量为()
A、700~850t/h
B、750~900t/h
C、750~950t/h
D、800~900t/h
参考答案:D
--Which of the two CDs will you buy?
---I’ll buy ______. Then I can give one to my friend Linda.
A. either B. both C. neither
可导致视神经炎的见于下列哪一类中毒()。
A.四氯化碳
B.硝基苯
C.甲醇
D.异烟肼