某人把大小相同的3个黄色,3个白色的乒乓球放到一个盒子里,让人摸球。规定:若摸得

题型:选择题

问题:

某人把大小相同的3个黄色,3个白色的乒乓球放到一个盒子里,让人摸球。规定:若摸得同色3个球,则送给摸球者5元钱,若摸得非同色的3个球,摸球者付给自己1元钱。假定一天内有100人次摸球,试从概率角度估算一下这个人一年(按360天计算)能赚的钱数为(   )

A.6000

B.12000

C.7200

D.14400

考点:古典概型的定义及计算
题型:选择题

制定租金收取办法的目的是尽量减少()带来损失。

A.由于迟付或拖欠租金而给业主

B.由于空置或免租期长而给业主

C.由于空置或免租期长而给物业服务企业

D.由于迟付或拖欠租金而给物业服务企业

题型:选择题

阅读理解。

     You might say that one reason Barack Obama is the President of the US is because he knows how to

give a good speech. In 2004, when Massachusetts Senator(参议员) John Kerry was the Democratic

Party’s nominee(被提名者) for the presidency, a little-known senator from Illinois gave the keynote

speech at the Democratic National Convention. That senator was Obama. It was a remarkable speech -- poetic, and inspiring. The people who heard it would remember it for a long time. 

     Since 2004, Obama has written and delivered thousands of speeches. These are usually praised for

two reasons: he treats the audiences like intelligent adults, and he is able to express complicated ideas in

an easy, natural way. Before becoming president, Obama was a lawyer, a college professor, and a

successful writer -- his two memoirs(回忆录) have become best-sellers. The skills he needed to succeed

in his previous jobs have also contributed to his success as a speechmaker.

     Writing team: Obama has a team of people who write his speeches. The writers chat with Obama for

hours about what he wants to say. They listen to recordings of past presidential addresses and seek advice from advisers. Obama usually edits and rewrites the drafts several times.

     Obama’s tricks for a lighthearted speech that stays on message:

     Make fun of the guests. Obama starts his speech by gently teasing his guests. His opening lines grab the audience’s attention while giving them an opportunity to relax and laugh at themselves and each other.

     Make fun of yourself. A good rule for speechmakers: If you’re going to make a joke about someone

else, be sure to make one about yourself, too. Obama mocks his own poor choices for filling the position

of Commerce Secretary, saying, "No President in history has ever named three Commerce Secretaries this quickly.”

1. Obama made the poetic and inspiring speech in 2004 as________.

A. president              

B. a nominee for the presidency

C. a senator              

D. a secretary

2. What’s the meaning of the underlined word in paragraph 2?

A. Difficult to understand.      

B. Easy to understand.

C. Different from others        

D. Interesting to say.

3. According to the passage, we know that before becoming president, _________.

A. Obama was once a lawyer, a doctor and a college professor.

B. Obama was a successful writer.

C. Obama’s three memoirs have become best-sellers.

D. Obama’s former jobs have nothing to do with his speech.

4. According to paragraph 3, we know that _________.

A. Obama writes his speech himself.

B. the writers chat with Obama only for minutes before writing.

C. the writers never listen to recordings of past presidential speeches.

D. Obama is serious with his speech.

5. What’s the best title of the passage?

A. Secret of Obama’s successful speeches.  

B. Obama’s successful speeches.

C. Obama’s way of making speeches.      

D. Problems of Obama’s speeches.

题型:选择题

术后拆线时间错误的是()。

A.头面部4~5天

B.下腹部5~6天

C.会阴部6~7天

D.上腹部7~9天

E.四肢10~12天

题型:选择题

苗族的建筑主要以()为主。

A.鼓楼

B.吊脚楼

C.蒙古包

D.钟楼

题型:选择题

下图所示为沿23°26′S的海陆分布示意图,读图完成下列各题。

①、②、③所代表的大洋分别是()

A.印度洋、大西洋、太平洋

B.印度洋、太平洋、大西洋

C.太平洋、印度洋、大西洋

D.太平洋、大西洋、印度洋

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