M600工程中,监控波长一般用的是() A.1471nm B.1491nm C.15

题型:单项选择题

问题:

M600工程中,监控波长一般用的是()

A.1471nm

B.1491nm

C.1510nm

D.1310nm

考点:中兴认证考试基础知识基础知识题库
题型:单项选择题

阅读理解。

    What's a blog? A blog is a personal online diary (日记). It's cool, it's hot, and everyone is doing it. People

talk about it often. Sound like a fashion? In fact, It's another trend (流行趋势). And the word "blogger" means

a person who writes diaries online. Are you a blogger?  

     Many bloggers are teenagers who log (进入) onto websites to discuss anything in their lives. Many of

today's teenagers are not afraid to openly discuss everything in their lives. Teenagers complain about their

parents and homework. They share diaries, post (发布) songs from the latest bands and show pictures of

theirs. They write their own poems, say something about their girlfriends or boyfriends and complain to each

other or offer support. But mostly they just write down what they do every day.  

     However, many parents are worried about these young bloggers. Parents see the kids talking about how

they got drunk last weekend and how they don't like studying. They are using the language that is surprising

to their parents. Besides hearing from their friends, teen bloggers also get messages from strangers. Most of

the time, it's older men asking to meet teenage girls. "These strange men are dangerous for my kids. They

sometimes teach my kids bad words." said Cara Cabral, a mother of two children.  

     Many teenagers and young adults know it's not safe to use blogs on the Internet. They know they are

putting information about themselves in a place where it can be seen by anyone. But teenagers are unwilling

to give up these new communication tools that have become a way of life for many of them.   

1. The underlined word "it" in the first paragraph means _____.  

A. the fashion

B. the Internet

C. the blog

2. Which of the following is NOT TRUE?  

A. Teenagers don't tell about their personal life in their blogs.  

B. Teenagers mostly write down what they do every day in their blogs.  

C. Teenagers complain about their parents and homework in their blogs.  

3. What's the main idea of the third paragraph?  

A. Many parents don't understand kids' language in their blogs.  

B. Many parents are worried about these young bloggers.   

C. Many parents can understand why their kids don't like studying. 

4. Many parents think it's _____ for their children to get messages from strangers.  

A. dangerous

B. interesting

C. surprising   

5. We can learn from the last paragraph that _____.  

A. It's easy for many teenagers to give up blogging on the Internet   

B. It's safe for many teenagers to put their personal information on the Internet  

C. It's popular for many teenagers to use blogs on the Internet 

题型:单项选择题

按照()分类,腐蚀分为全面腐蚀和局部腐蚀。

A.原理

B.介质

C.材料

D.破坏形式

题型:单项选择题

影响供油提前角大小的因素有哪些?

题型:单项选择题

下列处于全开状态的阀门是()。

A、J1

B、J2a

C、J3b

题型:单项选择题

关于职业责任,下列说法中正确的是()。

A、是否具有职业责任是从业人员道德水平高低的体现

B、职业责任与物质利益存在直接关系

C、社会和企事业运用法律和纪律手段保障职业责任和义务的履行

D、职业责任是个中性概念,并不涉及道德问题

更多题库