在山东威海举行的第十一届全国运动会铁人三项女子决赛中,采用了奥林匹克标准竞赛距离

题型:选择题

问题:

在山东威海举行的第十一届全国运动会铁人三项女子决赛中,采用了奥林匹克标准竞赛距离,包括一点五公里游泳、四十公里自行车和十公里跑步三部分,总距离为五十一点五公里.东道主选手王毅在最后一圈加速冲刺,以领先9.24秒的优势获得冠军,总成绩是2小时16分02秒77.假设王毅在三项中各段的时间分别为t1、t2、t3,对应行程为s1、s2、s3,三项中各段的平均速率分别为v1、v2、v3,总平均速率为v.则(计算中结果保留一位小数)(  )

A.v1<v3<v2

B.v=

C.v=6.3 m/s

D.v可能比大,也可能比

考点:机械运动
题型:选择题

根据短文内容,判断下列句子正误。正确的用“A”表示,不正确的用“B”表示。

     Jia Meng used to keep a diary (日记) in Chinese. But one year ago, the 14-year-old girl from Hei Longjiang

began to write her diary in English, because Jia found her mother was reading her diary secretly. She changed

the language because her mother can't read English."It's like killing two birds with one stone." said Jia, "My

privacy (隐私) became safe and my English improves a lot."

     Jia's mother is not the only mom who reads her child's diary. Recently, Renmin University of China had a

national survey among over 2, 3000 parents. The results show that 40% of parents read their children's secrets.

That's why, like Jia, many teenagers try to find ways to protect (保护) their privacy.

     Wu Lei, 15, of Shanxi, keeps a diary, too. But he doesn't write in on paper. He writes online which he thinks

is perfectly safe because his parents "know nothing about the Internet."

     Lu Huan, 13, of Guangdong, said her parents always secretly listened to the talk between her friends and her

on the telephone in their room. To solve this problem, Lu asked her parents to buy her a mobile phone.

     "Parents want to know what is going on in their children's lives," said Shao Xiazhen, a teenage expert in

Beijing. "But sometimes they go about it the wrong way." Shao suggested to teenagers that instead of hiding

their secrets, talking to parents is a better solution. "If your parents know that you are safe, they'll let you keep

your secrets."

( )1. Jia Meng writes her diary in English in order to improve her English.

( )2. Recently, Renmin University of China had a national survey, and the results show that 40% of parents 

            read their children's secrets.

( )3. Keeping a diary online is the best way to protect the privacy according to the article.

( )4. Lu Huan asked her parents to buy her a mobile phone in order to protect her privacy.

( )5. Shao Xiazhen thinks parents will let children keep their secrets if they talk to parents and parents know 

           they are safe.

题型:选择题

组成气候的两个基本要素是(  )

A.光照、降水

B.气温、降水

C.气压、降水

D.气压、风力

题型:选择题

马致远的被誉为“秋思之祖”的散曲是()。

A.《双调·夜行船》(百岁光阴)

B.《中吕·阳春曲》(“题情”其五)

C.《越调·天净沙》(秋思)

D.《越调·凭栏人》(寄征衣)

题型:选择题

么是液化石油气钢瓶?

题型:选择题

( )是指用于改善人民生活,使社会秩序更为良好,经济更为发展的支出。

A.购买性支出

B.预防性支出

C.创造性支出

D.可控制性支出

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