【单选题】定子绕组串串电阻的降压启动是指电动机启动时,把电阻( )在电动机定子绕组于电源之间,通过电阻的分压作用来降低定子绕组上的启动电压。
【单选题】_________ he stayed in Germany for half a year and he will go to Germany _________again.
A.
Before long; before long
B.
Long before; long before
C.
Before long; long before
D.
Long before; before long
【单选题】CC-Link变频器通讯时由主机传递给变频器的远程寄存器为( )
【判断题】酵母菌芽殖的出芽方式包括多边出芽、两端出芽、三边出芽和单边出芽。
【简答题】产品成本的分步法是以______和______为对象计算产品成本的方法,主要适用于______的生产。
【单选题】定子绕组串联电阻的降压启动是指电动机启动时,把电阻串联在电动机定子绕组与电源之间,通过电阻的分压作用来( )定子绕组上的启动电压。
【判断题】定子绕组串电阻的降压启动是指电动机启动时,把电阻串接在电动机定子绕组与电源之间,通过电阻的分压作用来降低定子绕组上的启动电压。
【单选题】Germany is mentioned in the last paragraph to show that
A.
Germany pays higher benefits to those with a longer work history.
B.
corporatist states like Germany provide better benefits than Britain.
C.
welfare system is also likely to influence work incentives.
D.
Germany encourages positive work attitudes by paying higher benefits.