质量信息能帮助组织（）。 A.直接解决问题 B.寻找解决问题的途径 C.作出改进决策

Are you ready _____________ class? [ ]

A. to

B. for

C. in

D. on

下列对1789年大革命至法兰西第三共和国建立前法国政体不断变换的比喻中，你觉得比较恰当的是

A．一言堂

B．暴风雪

C．走马灯

D．两党制

句型转换。

1. I will have an English test tomorrow. (改为一般疑问句)

2.I'm going to learn to paly the piano next summer holiday.(改为同义句)

3. She is going there by bike. (对画线部分提问)

4. We will see a movie this weekend. (对画线部分提问)

5. He has to stay at home to look after his sister. (改为否定句)

I like that music, but the lyrics              good enough.    [ ]

A. aren't                      

B. are    

C. isn't .                      

D. is  

DCS操作站屏幕左上角的第1个是什么按钮，有几种显示状态，分别表示什么？