瓦斯涌出量梯度的物理意义是。()A.开采深度每增加10m相对瓦斯涌出量的平均增加值

题型:单项选择题

问题:

瓦斯涌出量梯度的物理意义是。()

A.开采深度每增加10m相对瓦斯涌出量的平均增加值

B.开采深度每增加1m相对瓦斯涌出量的平均增加值

C.开采深度每增加10m绝对瓦斯涌出量的平均增加值

D.开采深度每增加1m绝对瓦斯涌出量的平均增加值

考点:瓦斯检查工考试瓦斯检查工考试题库
题型:单项选择题

阅读理解。

     We need to be responsible for our environment. Being a frugal consumer (节俭的消费者) is one way

to help. But, what exactly does that mean?   

     Use It Up   

     You can use things up instead of wasting them. Squeeze that last bit of toothpaste out of the tube. Use

the last little piece of soap. Don't throw away any bits of the biscuit at the bottom of the box.   

     Wear It Out   

     You do not always need to have new things. Suppose your sneakers have broken laces, but they still

fit you. Repair them and wear them longer. You don't have the latest iPhone until the old one doesn't work

anymore. Then you can get a new one. Think twice before replacing something that still works.   

     Make It Do   

     When something you want is not on hand, look for something else that you already have to take its place.

Suppose you are packing your lunch for tomorrow and want a butter sandwich. You are out of butter. Have

a cheese sandwich instead so that you can use all of the cheese. Learn to fix broken toys instead of just

throwing them away. With a little thought, you can make something do, instead of buying something new.   

     Do Without   

     Think about all those things that you would like to have. Do you really need them? How long will you

really play with that new toy you saw on TV? Making the things that we want uses up your world's resources(资源). And, getting rid of the things we don't want any more takes up even more resources and space.

1. Do we need to be responsible for our environment?  

    __________________________________________________ 

2. How do we deal with the last little piece of soap?  

    __________________________________________________  

3. When do we need to get a new iPhone?

    __________________________________________________ 

4. What should we do when something we want is not on hand? 

    __________________________________________________ 

5. What does the writer want to tell us?

    __________________________________________________ 

题型:单项选择题

如果有穷数列a1、a2、a3、…、an(n为正整数)满足条件a1=an,a2=an-1,…,an=a1,即ak=an-k+1(k=1,2 …,n),我们称其为“对称数列”.设{bn}是项数为7的“对称数列”,其中b1、b2、b3、b4成等差数列,且b1=2,b2+b4=16,依次写出{bn}的每一项______.

题型:单项选择题

成员国之间废除关税和数量限制,商品可以自由流动,但每个成员国仍保持自己对非成员国的贸易壁垒的地区性经贸集团是()。

A.优惠贸易安排 

B.自由贸易区 

C.关税同盟

题型:单项选择题

(二)
联想律师事务所为提升所里的业务量在当地法律报上作了一个整版广告,某日甲通过报纸找到联想律师事务所的张律师为其代理一件数额较大的经济纠纷案件。一审判决后,张律师在接受当地媒体采访时表示对判决结果不满,并表示将会上诉。
联想律师事务所在作广告时,下列哪些属于不正确的做法:

A.广告中附有事务所的收费标准

B.在广告中印有联想律师事务所获得“十佳律师事务所”称号的证书,但未将获奖时间公布出来

C.广告中介绍本所的业务专长是经济、知识产权案件及为公司上市出示法律意见书,并称当地60%以上的公司上市法律方面的事务都是由其代理,暗示它在这方面是权威

D.广告中介绍主任律师曾获得“2001年最佳律师”称号,口才极佳,从不败诉

题型:单项选择题

瓦斯爆炸必须具备的条件是什么?

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