根据Q/GDW396—2009,建模时录波LD的inst名为()。 A.PROT B

题型:单项选择题

问题:

根据Q/GDW396—2009,建模时录波LD的inst名为()。

A.PROT

B.RCD

C.LD0

D.RPIT

考点:继电保护工考试智能变电站继电保护智能变电站继电保护题库
题型:单项选择题

短文改错。

     假如英语课上老师要求同学们交换修改作文,请你修改你同桌的以下作文。文章共有10处语言

错误,要求你在错误的地方增加、删除或修改某个单词。

增加:在缺词处加一个漏字符号(A),并在其下面写上该加的词。

删除:把多余的词用斜线(\)划掉。

修改:在错的词下画一横线,并在该词下面写上修改后的词。

注意:1. 每处错误及修改词均仅限一词; 

          2. 只允许修改10处,多者(从11处起)不记分。

Dear Editor,

     I'm writing to tell you about a food poisoning accident. Several days ago, my neighbor ate a bag of food

buying from the market. After the meal, they had stomachaches and their faces turn pale. Fortunately, one

of their friends found the accident and immediately called on an ambulance, which carried them quickly to

a hospital. After several hours' treatment they finally escaped from death. 

     As some illegal businessmen only interested in making profits to become rich quickly, we seldom care

about the necessary safety measures or care which happens to consumers. They must be charged with law.

Meanwhile, I do hope whole society can realize the important of food safety and begin taking action together

to make sure food is safe. 

                                                                                                                                         Yours, 

                                                                                                                                        Wang Ming

__________________________________________________________________________________

__________________________________________________________________________________

题型:单项选择题

在用二分法求方程的近似解时,若初始区间是[1,5],精确度要求是0.001,则需要计算的次数是______.

题型:单项选择题

将一个半径5厘米的圆形铁片,加工成半径为4厘米的圆形铁片零件,铁片的面积减少了多少平方厘米?

题型:单项选择题

变压器补油后要检查气体断电器,及时放出气体。若在()后无问题,可重新将气体保护接入跳闸回路。

题型:单项选择题

下面程序运行后输出结果是()

A.CAB

B.BCA

C.BCB

D.CBC

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