在煤矿生产中,当生产与安全发生矛盾时必须是()。A.安全第一 B.生产第一 C.先生

题型:单项选择题

问题:

在煤矿生产中,当生产与安全发生矛盾时必须是()。

A.安全第一

B.生产第一

C.先生产后安全

考点:采煤机司机考试采煤机司机考试题库
题型:单项选择题

阅读理解。

     School is not the safe place as it used to be. How to be safer in school? How can students stay away

from danger? There are many activities that students can do to learn safety in an easy way. Here are some

stories from the students who have had safety classes in Xuri Middle School.

     Wang Lin:

     About Sports Safety Once we made up a story about sports safety. All we needed to do was to point

out safe and unsafe sports behaviors in the story. From this lesson, we knew we should always do warm-up

(热身)activities before playing sports and drink some water after that.

     Liu Ying:

     About Classroom Safety Putting on short plays is a good way to learn and enjoy ourselves. We once put

on a short play about a boy called Little Naughty. He always did something naughty (淘气的) in the classroom

and got himself into trouble. In this way, we learned to behave well and get on well with each other.

     Zhou Weilun:

     About Fire Safety In our school, we have a fire emergency response practice (火警应急演习) in September

every year. So we know where to go if there is a fire in school. We learn to use the fire extinguisher (灭火器),

too. But I don't think we should be allowed to put out the fire alone,it's too dangerous for young students like

us.

1. The writer talks about ________ kinds of school safety in this passage.

A. two

B. three

C. four

2. According to the passage, we can learn that ________.

A. the students in school often get into trouble

B. school is not as safe as it used to be

C. there is a safety class in school once a month

3. Zhou Weilun tells us that they also learn how to use ________.

4. The passage is probably written for ________.

A. the athletes

B. the firefighters

C. the students

5. What is the best title for the passage?

A. Importance of School Safety    

B. Safety Activities for Students

C. How to Behave Well in School

题型:单项选择题

TCP使用IP传递信息,每一个TCP信息被封装在一个 【11】 中并通过互联网传送。

题型:单项选择题

不饱和烃的良好吸收剂是()。

A.33%的氢氧化钾溶液

B.硫酸银浓硫酸溶液

C.焦性设食子酸钾碱性溶液

D.氯化亚铜氨性溶液

题型:单项选择题

在考生文件夹中有一个工程文件sj4.vbp,相应的窗体文件名为sj4.frm。其窗体(Form1)如下图所示。该程序用来对在上面的文本框中输入的英文字母串(称为“明文”)加密,加密结果(称为“密文”)显示在下面的文本框中。加密的方法是:选中一个单选按钮,单击“加密”按钮后,根据选中的单选按钮后面的数字n,把文中的每个字母改为它后面的第n个字母(“z”后面的字母认为是“a”,“Z”后面的字母认为是“A”)。窗体中已经给出了所有控件和程序,但程序不完整,请去掉程序中的注释符“’’,把程序中的问号“”改为正确的内容。

注意:不能修改程序的其他部分和控件的属性。最后按原文件名并在原文件夹中保存修改后的文件。

题型:单项选择题

壮热,大汗不止,突然体温下降,四肢厥冷,面色苍白,脉微欲绝者证属

A.上热下寒
B.表寒里热
C.热证转化为寒证
D.真寒假热
E.真热假寒

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