已知函数f（x）＝ax2＋bx＋c，其中a∈N*，b∈N，c∈Z。 （1）若b>

请修改以下短文，短文共10处错误，每句最多有两处错误。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（﹨）划掉。

修改：在错的词下画一横线，并在该词下面写出修改后的词。

注意：只允许修改10处，多者（从第11处起）不计分

One day, I was cooking in the kitchen while the telephone rang. I went to answer it immediate. She was my close friend, Lisa. When we were talking on a phone, the fire alarm sounded. I run back to the kitchen find the room full of smoke and the beef badly burnt. I quickly turned off the gas, opening all the windows, and then went out of the house. To my surprise, two fire engine were outside my house. I was rather worried. I told about the firemen that it was my careless cooking which caused the heavy smoke.

手术过程中清点核对器械、敷料的时间是()。

A．手术开始前和准备关体腔前

B．手术进行中

C．手术开始前

D．开始缝合皮肤前

E．手术完毕后

运行中汽机发生水冲击时，则推力瓦温度（），轴向位移（），相对胀差负值（），负荷突然（）。

信息传输率与信息传输误码率（）

A.信息传输率越高误码率越低

B.信息传输率越高误码率越高

C.无关

一块TRUA可以提供（）对2M端口

A、1

B、2

C、3

D、4