引进负压原油稳定装置启车前，稳定油泵出口调节阀应置于自动位置，给定值调在（）mm。
A、1364
B、1286
C、1184
D、1100
参考答案：B
—He is tired now. He _____ stay at home and have a rest.
—Thanks, doctor. [ ]
A. has to
B. mays
C. need
D. can't
A．5A
B．5A
C．3.5A
D．3.5A
