一物块以一定的速度滑上静止于光滑水平面上的足够长的木板,它们的v-t图象如图所示

题型:选择题

问题:

一物块以一定的速度滑上静止于光滑水平面上的足够长的木板,它们的v-t图象如图所示.则物块与长木板两物体的质量之比及两者之间的摩擦因数分别为(  )

A.3和0.30

B.3和0.28

C.

1
3
和0.28

D.

1
3和0.30

考点:牛顿第二定律
题型:选择题

已知abc>0,a>c,ac<0,则下列结论正确的是   [ ]

A.a<0,b<0,c>0    

B.a>0,b>0,c<0    

C. a>0,b<0,c<0    

D.a<0,b >0,c>0

题型:选择题

圆的位置由(   )确定,圆的大小由(   )确定。

题型:选择题

简述企业在进行品牌延伸时可采用的方式。

题型:选择题

信息匹配

    请阅读下列应用文及相关信息,按照要求匹配信息。首先,请阅读下列有关活动的信息:

A. An Acrobatic (杂技) Soul

     To celebrate its 50th anniversary, the China Acrobatic Troupe will present "The Soul of China", where

the seemingly impossible is made real. Chills will run down your spine as you watch breathlessly as

performers take their art and their bodies to the edge.

     Time: 7:30pm, September 13-19

     Place: the Capital Theatre, 22 Wangfujingdajie Street, Dongcheng District

B. Exhibitions Joint Show

      A group ink painting exhibition is running at the ltuangshicheng Art Gallery in Beijing. About 50 works by 25 young artists including Ge Yun and Yu Yang are on display.

      Time: 9am-5pm until September 10

      Place: Huangshicheng Gallery, 136 Nanchizi Road, Dongcheng District

C. Oil Paintings                    

      The Wanfang Art Galley will host a joint show of oil paintings by 10 young and middle-aged artists. On display are more than 30 of their latest works, which capture the wonderful variety of life in unique styles.

      Time: 9am-4pm until September 15

      Place: 136 Nanchizi Street, Dongcheng District

D. Literature Museum

      The National Museum of Modern Chinese Literature offers a study of the evolution of Chinese

contemporary literature from 1919 to 1949.

      Time: 9am-4pm, daily

      Place: 45 Anyuandonglu Road, Chaoyang District (Shaoyaoju area)

E. Concerts

      Beijing rocks: "The Fashion Night of Chinese Rock" is set to bring rock fans out next month. Nine

Chinese rock bands will perform at the concert, including older generation bands, middle generation and

some recent arrivals. Audiences will be given a chance to decide what songs they want to hear, which is

sure to bring a crowd.

      Time: September 16

      Place: The Olympic Center

F. Belgium Orchestra

      La Petite Band, the Baroque Orchestra of Belgium, will perform in Beijing at Grand Theatre of the

Cultural Palace of Nationalities as part of activities across the world to commemorate(纪念) the 250th

anniversary of Bach's death.

      Time: 7:30pm, September 11-14

      Place: Grand Theatre of the Cultural Palace of Nationalities

阅读下面待选人的信息,然后匹配他/她所选的活动:

1. Wang Lin: Wang Lin is a university student who studies music. He hopes to hear some live examples of

foreign music from a western band.

2. Simon: Simon is interested in Chinese literature, so he came to China with his parents. During

his stay in Beijing, he wants to learn more about Chinese contemporary Literature.

3. Li Hua: Li Hua is an eighteen-year-old boy. He is studying in a high school. After many months of hard

studying, he is tired of his lessons. He would like to experience something adventurous.

4. Alice: Alice is an American girl who studies art at Beijing University. She has no classes on September

14. She hopes to enjoy some wonderful oil paintings.

5. Victoria: Victoria is fond of Chinese music. She hopes to listen to various songs performed by different bands. She doesn't care what kinds of songs they are.

题型:选择题

宪政一般是以宪法为前提,以民主政治为核心,以法治为基石,以分权制衡为手段,以保障 * * 为目的的政治形态或政治过程。下列各项论断哪些是与宪政的基本内涵相吻合的( )

A.宪法的制定与实施是建立宪政的充分条件

B.建立有限政府是宪政的基本精神

C.公民在法律面前一律平等

D.宪政着眼于公民权利的保障

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