汽轮机在运行中发现轴承振动突增()mm,超过()mm应紧急事故停机。
参考答案:0.05;0.1
治疗伤寒的首选药是()
A.红霉素
B.氯霉素
C.四环素
D.多烯环素
E.庆大霉素
— Perhaps we should give up.
— Nobody can ________ the change of situation. [ ]
A. predict
B. present
C. prepare
D. prefer