EH油系统在运行中的含水量应不大于（）％（体积百分比）
A.0.10
B.0.50
C.0.80
D.1.00
参考答案：A
述通下法在温病中的运用？
---Hello, May I speak to John?
--- , please call back later.
A．Wait a minute
B．I’ll look for him
C．Sorry, he isn’t in
D．I’m busy now
