耐火砖砌体在300~1200℃温度范围内的实际膨胀率为()。A、0.75% B、0.

题型:单项选择题

问题:

耐火砖砌体在300~1200℃温度范围内的实际膨胀率为()。

A、0.75%

B、0.5%

C、0.4%

D、0.3%

考点:锅炉检修工考试锅炉本体检修锅炉本体检修题库
题型:单项选择题

如图所示,当开关S闭合后,当移动滑动变阻器的滑片P到B端时,电压表的示数为6V,电流表示数为0.6A.当移动滑动变阻器的滑片P到滑动变阻器的中点C时,电压表示数为4.5V.求:电源电压和R1的阻值.

题型:单项选择题

某台车床有A,B,C三个组加工某一产品,三个班的产品都用直方图来表示分布,分布的类型为:A班:锯齿型;B班:标准型;C班:双峰班。请回答以下问题:

A班产品作频数分布时可能会有以下问题______。

A.测量方法问题

B.读错数据

C.混入别的产品

D.分组过多

题型:单项选择题

阅读理解。

                                                            Open Letter to an Editor

     I had an interesting conversation with a reporter recently-one who works for you. In fact, he's one of your

best reporters. He wants to leave.

     Your reporter gave me a copy of his resume (简历) and photocopies of six stories that he wrote for you.

The headlines showed you played them proudly. With great enthusiasm, he talked about how he finds issues (问

题), approaches them, and writes about them, which tells me he is one of your best. I'm sure you would hate

to lose him. Surprisingly, your reporter is not unhappy. In fact, he told me he really likes his job. He has a great

assignment (分工), and said you run a great paper. It would be easy for you to keep him, he said. He knows

that the paper values him. He appreciates the responsibility you've given him, takes ownership of his profession,

and enjoys his freedom.

     So why is he looking for a way out?

     He talked to me because he wants his editors to demand so much more of him. He wants to be pushed,

challenged, coached to new heights.

     The reporter believes that good stories spring from good questions, but his editors usually ask how long the

story will be, when it will be in, where it can play, and what the budget is.

     He longs for conversations with an editor who will help him turn his good ideas into great ones. He wants

someone to get excited about what he's doing and to help him turn his story idea upside down and inside out,

exploring the best ways to report it. He wants to be more valuable for your paper. That's what you want for

him, too, isn't it?

     So your reporter has set me thinking.

     Our best hope in keeping our best reporters, copy editors, photographers, artists-everyone-is to work

harder to make sure they get the help they are demanding to reach their potential. If we can't do it, they'll find

someone who can.

1. What does the writer think of the reporter? [ ]

A. Optimistic.

B. Imaginative.

C. Ambitious.

D. Proud.

2. What does the reporter want most from his editors in their talks? [ ]

A. Finding the news value of his stories.

B. Giving him financial support.

C. Helping him to find issues.

D. Improving his good ideas.

3. Who probably wrote the letter? [ ]

A. An editor.

B. An artist.

C. A reporter.

D. A reader.

4. The letter aims to remind editors that they should _____.[ ]

A. keep their best reporters at all costs

B. give more freedom to their reporters

C. be aware of their reporters' professional development

D. appreciate their reporters' working styles and attitudes

题型:单项选择题

以下描述哪项是正确的()

A.构音障碍评定只要求发音的评定检查

B.构音障碍检查可量化计算构音商

C.语言障碍诊治仪ZM2.1仅可筛查失语症,不可筛查构音障碍

D.语言障碍诊治仪ZM2.1检查法不需要人工辅助

E.西方失语症成套测验简称为WAB

题型:单项选择题

费正清《中国:传统与变迁》一书中说:“隋及初唐时……制度和文化也取得了突破性进展”。下面有关隋唐政治制度的“突破性进展”的叙述,正确的是()

A.相权三分,独立施政

B.分工明确,相互牵制

C.中央集权,地方分权

D.完善机构,皇权顶峰

更多题库