雇主歧视意味着（） A.一些雇主为了避免雇佣某一群体而放弃了利润 B.如果受歧视的群

思维表达。

1．①为了学生的一切     ②一切为了学生      ③为了一切学生     

     如果把这三句话按照“倡导宗旨、面向全体、立足发展”三个意思依次排列，那么正确的顺序应该是(          )（填序号）。     

2．如果你是鱼儿，那么快乐就是一汪清清的泉水；如果你是小草，那么快乐就是一束暖暖的阳光：如果你是                      ，那么快乐就是               ；如果你是                    ，那么快乐就是                      ……

Facebook users may feel socially successful in the web world but they are more likely to perform poorly in exams. The majority of students who use Facebook every day are doing badly compared with those who don’t. About 83% of British 16 to 24-year-old people are using social networking site such as Facebook and MySpace, to keep in touch with friends and organize their social activities.

“Our study shows people who spend more time on Facebook spend less time studying,” said Aryn Karpinski, a researcher. “Every generation has its distractions(娱乐), but I think Facebook is a unique phenomenon.” Karpinski and a colleague questioned 219 US undergraduates and graduates about their study and general Internet use, as well as their specific use of Facebook. They found 65% of Facebook users accessed their account daily, checking it several times to see if they had received new messages. The amount of time spent on Facebook at each log-in(登录) varied from just a few minutes to more than an hour.

Some UK students have already realized the potential danger. Daisy Jones, 21, an undergraduate, realized the time she was spending on Facebook was threatening her grades, urging her to deactivate(使无效) her account, “I was in the library and tried to write a 2,000-word essay when I realized my Facebook habit had got out of hand,” she said. “I couldn’t resist going online, when thinking about it. Before you know it , a couple of minutes have turned into a couple of hours and you haven’t written a word.”

Jones is among the few to have realized the risks. 79% of the users, however, believed the time they spent on the site had no impact on their work. The CEO of Facebook said, “There is also academic research that shows the benefits of services like Facebook. It’s in the hands of students to decide how to spend their time.”

小题1:What can we know from Paragraph 1?

A．All the students who don’t use Facebook do well in exams.

B．Social networking sites have both advantages and disadvantages.

C．Facebook is the main site for British people to keep in touch.

D．Most of British students use social networking sites daily.小题2:Facebook users check their account frequently to ____________.

A．spend less time on study

B．make sure new messages aren’t missed

C．practise specific use of Facebook

D．accumulate amount of time spent on Facebook.小题3:Why did Daisy Jones deactivate her account?

A．She was warned about the risk of using Facebook.

B．Spending much time on Facebook affected her study

C．She wanted to write a long article in the library.

D．There was something wrong with her eyes.小题4:What’s the best title of the passage ?

A．Facebook fans do worse in exams

B．Social networking sites and their fans

C．Facebook helps organize social activities

D．How to use social networking sites correctly.

门静脉血流占全肝血流的（）.

A.80%～90%

B.60%～80%

C.40%～60%

D.30%～40%

E.10%～30%

测定内生肌酐清除率应注意做到（）

A.低蛋白禁肉食7d

B.同时测定血和尿肌酐

C.避免剧烈运动

D.大量饮水

E.准确留取24h尿

某中年男性病人，中午服敌百虫农药半杯，晚6时被家人发现，随即送来就诊，检查：躁动不合作、流涎、出汗、心率70次/分、呼吸28次/分、瞳孔1mm，不宜采用( )

A．催吐
B．1:5000高锰酸钾溶液洗胃
C．吸氧
D．灌入50%硫酸镁导泻
E．按医嘱立即注射阿托品