【单选题】Air in the fuel lines to the fuel injection nozzles of a diesel engine will cause the engine to ______.
A.
burn excessive amounts of lube oil
B.
overheat without smoking
C.
operate with reduce power or stop
【单选题】用化学观点解释下列成语,错误的是( )
D.
杯水车薪:不能将温度迅速下降到可燃物的着火点以下
【单选题】when the fuel/air mixture in the cylinder burns, the temperature ______and the fuel is converted to exhaust gas.
【多选题】新批准上市的生物制品首次申请批签发前,批签发申请人应当在批签发信息管理系统内登记建档。登记时应当提交以下资料:( )
【单选题】以 1949 年 为最初水平, 2002 年 为最末水平,计算钢产量的年平均发展速度时,须开( )
【单选题】下列选项中,不属于银行代理国债的是( )
【单选题】_____ or air venting arrangement is fitted to the fuel supply passage.
【单选题】The soot blowers are operating in the oil fuel boiler the air/fuel ratio must _____ throughout the action, and blowers greased after use.
D.
either be increased or remain constant