FKQ3204型防喷器控制系统最高压力可以调定到（）MPa。
A、21
B、24
C、34
D、40
参考答案：C
A: It's getting rather late, I have to say goodbye. B: ______
A．Why do you want to go now
B．I'd like to say goodbye, too.
C．You are welcome.
D．Hope you had a good time. See you tomorrow.
Swan-Ganz导管的留置时间最佳为（）。
A.3～5d
B.依病情而定
C.48h
D.72h
E.3～7d
