加氢裂化装置循环水中断,将不会引起()升高。
A、补充氢压缩机出口温度
B、润滑油温度
C、润滑油过滤器压差
D、密封油温度
参考答案:C
“Where is Mother.” “She is in the kitchen. She _______ the housework all morning.”
A.is doing
B.was doing
C.has done
D.has been doing
正常心电图的P波时限为()
A.0.1秒
B.0.11秒
C.0.12秒
D.0.13秒
E.0.14秒