甲乙二人各带一捆电话线给用户安装电话,回来后,二人交流工作情况:甲说:“我用去了

题型:解答题

问题:

甲乙二人各带一捆电话线给用户安装电话,回来后,二人交流工作情况:甲说:“我用去了一捆的一半,还剩50米.”乙说;“我比你多用了25米,不过只剩下一捆的40%.”请你根据二人的对话,算算甲乙二人各带了多少米电话线?

考点:分数除法及应用
题型:解答题

男性,38岁,全身多发性周围关节肿痛,反复发作4年余,发作时伴有晨僵现象,活动后减轻,化验:RF(+)。拟诊为类风湿关节炎。

关于类风湿关节炎的说法,下列哪项不正确()

A.发病和免疫反应有关

B.RA最基本病理变化是滑膜炎

C.血中类风湿因子本质是IgM抗体

D.类风湿因子阳性具有诊断价值

E.高滴度RF提示预后较差

题型:解答题

以下引起急性胰腺炎的原因中,最常见是()

A.胆、胰管开口梗阻,胆汁逆流

B.饮酒

C.流行性腮腺炎

D.穿透性消化溃疡

E.胰腺外伤

题型:解答题

现阶段,面对我国科技落后的现实及与发达国家的差距,我国科技的发展战略是[ ]

A.实施可持续发展战略

B.实施跨越式发展战略

C.实施科教兴国战略

D.实施人才强国战略

题型:解答题

阅读理解。

     Wugging, or web-use giving, describes the act of giving to charity at no cost to the user. By using

Everyclick.com, which is being added to a number of university computers across the UK, students can

raise money every time they search, but it won't cost them a penny.

     Research shows that students are extremely passionate about supporting charity - 88% of full time

students have used the Internet to give to charity. This age group is often the least likely to have their own

income. 19% of 22 to 24 year olds have short-term debts of more than £5,000. With rising personal debt

levels in this age group, due to university tuition fees or personal loans and a lack of long-term savings,

traditional methods of donating to charity are often not appealing or possible. Beth Truman, a 21 year old

recent university graduate, has used everyclick.com to donate to her chosen charity, the RSPCA, for two

years and has seen the "wugging" grow in popularity with students."When you're at university you become

more socially aware, but it's sometimes hard to give to others when you have little money yourself," says

Beth."Wugging is great for people in this age group as it allows them to use the technology on a daily basis

to give to charity, without costing them a single penny."

      Wugging is perfect for people who want to be more socially aware and supportive but don't feel they

have the means to do so. Students using the web can raise money for causes they care about without

costing them anything in terms of time or money, and charities get a valuable source of funding. Everyclick.

com works like any other search engine, allowing users to search for information, news and images but users

can decide which of the UK's 170,000 charities they would like to support through their clicks. Everyclick.

com then makes monthly payments to every registered charity. Launched in June 2005, Everyclick.com is

now the eighth largest search engine and one of the busiest charity websites in the UK.

1. In the case of charity, everyclick.com ______.

A. frees students of the financial worries

B. receives much money from students

C. offers valuable information to students

D. praises students for their money-raising

2. What does Beth Truman think of the "wugging" movement?

A. It makes Everyclick.com popular in the UK.

B. It becomes easy to do charity because of it.

C. It results in students' more social awareness.

D. It helps students to save money.

3. From the passage, we can conclude that ______.

A. most full time students do charity on the Internet every day

B. Everyclick.com helps students pay for the college education

C. "wugging" is a win-win idea for both students and charities

D. Everyclick.com is the most successful search engine in the UK

题型:解答题

简述离心式测速的工作原理?

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