某少年宫举行象棋比赛,共有10人参加,由于初次见面,他们两两之间都要握手问好,则

题型:填空题

问题:

某少年宫举行象棋比赛,共有10人参加,由于初次见面,他们两两之间都要握手问好,则他们共要握手______次.

考点:直线,线段,射线
题型:填空题

阅读理解。

     Malls are popular places for Americans to go. Some people spend so much time at malls that they are

 called "mallrats (老鼠)". Mall rats shop until they drop in the hundreds of stores.

    People like malls for many reasons. They feel safe because malls have police stations, parking is usually

 free, the weather inside is always fine. The newest malls have beautiful rest places with waterfalls (瀑布)

 and large green trees.

      The largest mall in the United States is the Mall of America in Minnesota. It covers 4. 2 million square

 feet (英尺). It has 350 stores, eight nightclubs, and a large park! There are parking spaces for 12,750

  cars. About 750,000 people shop there every week.

      The first indoor mall in the United States was built in1965 in Edina, Minnesota. People love doing all

 their shopping in one place. More malls are built around the country .Now malls are like town centers

 where people come to do many things. They shop, of course, they also eat in food courts (广场) that

 have food from all over the world. They see films at the theaters. Some people even get their exercise

 by doing the new sport of "mall walking". Others go to malls to meet friends.

     In some malls, people can see a doctor and even go to the church. In other words people can do just

 about everything in malls. Now people can live in their favorite shopping center in fact.

1. Here "mall" means ____.

    A. a large park

    B. a big church

    C. a square

    D. a shopping center

2. Why do people like malls

    A. Because they can plant green trees there.

    B. Because they enjoy the waterfalls there.

    C. Because they feel safe and comfortable there.

    D. Because they can do exercise there.

3. The largest mall in the United States ____.

    A. was built in 1965

    B. has 12,750 cars in it

    C. has 350 shops in it

    D. can hold 750,000 people

4. People can do many things in malls except ____.

    A. eating food

    B. seeing a film

    C. seeing a doctor

    D. playing golf

5. The writer ____.

    A. thinks malls make people's life easier

    B. likes to live in his favorite malls

    C. is called "mall rats" by others

    D. ten goes to the church in malls

题型:填空题

舌苔剥落不全,似有新生颗粒者为()。

A.光剥苔

B.花剥苔

C.类剥苔

D.地图舌

E.积粉苔

题型:填空题

全瓜蒌的功效是()。

A.清化热痰

B.利气、消痈

C.宽胸散结

D.清热解毒、生津

E.润肠通便

题型:填空题

下列哪种碱基只存在于mRNA而不存在于DNA由()

A.腺嘌呤

B.尿嘧啶

C.胞嘧啶

D.胸腺嘧啶

E.鸟嘌呤

题型:填空题

客户机/服务器(C/S)结构是一种基于 【11】 的分布处理系统。

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