双闭环直流调速系统在启动过程的第二阶段（）。 A.ASR、ACR均处

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问题单项选择题

双闭环直流调速系统在启动过程的第二阶段（）。

A.ASR、ACR均处于饱和状态

B.ASR处于饱和状态，ACR处于不饱和状态

C.ASR、ACR均处于不饱和状态

D.ASR处于不饱和状态，ACR处于饱和状态

答案

参考答案：B

选择题

---I decided to travel round Yunnan for a year.

---_______? You have just started a new job.

A．Come on

B．How come

C．Why not

D．What for

选择题

His cousin often has French fries , tomatoes and ____ for dinner .

A．chicken

B．chickens

C．the chicken

D．a chicken