良性前列腺增生的并发症中，不包括（）。 A.血尿 B.腹股沟疝 C.尿潴留 D.双肾

阅读理解。

     Alferd Williams was in Grade One to learn how to read and write at the age of 68．He is fulfilling (履

 行) a promise to learn to read that he made to his mother and to himself many years ago. Williams is now

 in his third year in Grade One at Edison Elementary School in Missouri, USA. And he is making his dream

  come true. he is reading books!

     Born in 1938, Williams was the fourth of nine children. At age 8, he joined his father in the fields and

 picked cotton and vegetables until sunset every day. His family was so poor that they couldn't afford to go

  to school. When he grew up and married, he had to work hard to support his own family. Finally, he

 became old, poor and in bad health. However, he still remembered his promise to his mother. He knew he

  had to learn to read to make his life better．

     One day in 2006, Williams was taking his friend's children to school when he saw Alessia Hamilton,

 a teacher at the school. She seemed very kind, and he thought maybe she could teach him how to read.

So he asked her, and she agreed to try.

     On his first day of school, Williams wasn't sure if his classmates would accept him, but they did. And

 now they love him. Williams says, "I tell the kids they can have anything they want in life if they stay in

 school."

     Reading has given Williams a new sense of freedom. Now he reads newspapers, books, magazines and

  the signs. He believes he can achieve his goal of reading.

1. When did Williams begin to study in Elementary School?

    A. In 1938.  

    B. In 1945.

    C. In 2006.  

    D. In 2009.

2. What's the right order of the following sentences according to the passage?

 ① Alferd Williams worked in the fields at the age of eight.

 ② Alferd Williams met Alessia Hamilton, a kind teacher.

 ③ The students in Edison Elementary School accepted and loved Alferd Williams.

 ④ When Alferd Williams grew up, he got married and supported his family.

    A. ①④②③

    B. ③①②④    

    C. ②③①④  

    D. ④①②③

3. Which of the following statements is TRUE according to the passage?

    A. Williams couldn't go to school because of his illness.

    B. Williams is still studying in Grade One now.

    C. Williams classmates weren't willing to accept him because he was too old.

    D. Williams wanted to read in order to have anything he wanted.

4. What's the best title of the article?

    A. Helpful classmates   

    B. Poor old man

    C. A nice teacher  

    D. Never too late to learn

正常心尖搏动位置在（）

A.第5肋间左锁骨中线内2.0～2.5cm

B.第6肋间左锁骨中线内1～2cm

C.第5肋间左锁骨中线内0.5～1cm

D.第6肋间左锁骨中线内0.5～1.0cm

E.第4肋间左锁骨中线内0.5～1cm

阅读下列材料

材料一  我们现在应当非常谨慎，应当不采取对卷入冲突中的国家的防务不会有益而不只会使人激怒，甚至会挑起致命步骤的措施。    ——摘自1962年赫鲁晓夫至肯尼迪的信

材料二  美国将参加各盟国和朋友的防务和发展活动，但是美国不能而且也不会制定全部方案，拟定全部计划，执行全部决定，负起保卫世界自由国家的全部责任。只有在我们的帮助真正起作用，并且被认为是符合我们的利益的时候，我们才会给予帮助。                       ——摘自1970年尼克松的对外政策报告     

材料三  美国在欧洲、大平洋、中东以及其他美国疆界之外的地区，有着广泛的义务和安全利益。这就需要美国担当起 “强有力的”、“令人信服”的“领导责任”。                   ——摘自里根的讲话

请回答:

（1）据材料一，苏联当时的态度说明了什么?

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（2）据材料二，尼克松政府为什么不再承诺“负起保卫世界自由国家的全部责任”?材料说明美国的全球扩张战略发生了什么样的变化?与此相应，美国在国际关系领域采取了哪些重要的行动。

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（3）里根上台后，表示美国要重新担当起“强有力的”“令人信服”的“领导责任”，其背景如何?

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（4）就以上三则材料，谈谈对美苏争霸的认识。

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关于Poisson分布，正确的是（）

A.总体均数与总体标准差相等

B.其概率函数图不可能出现负偏峰的图形

C.假定每10分钟内记录到的放射性脉冲数服从Poisson分布，若在某10分钟内记录值为X，则2X可看成是20分钟内记录到的放射性脉冲数，根据Poisson分布的可加性，它也服从Poisson分布

D.若变量X服从Poisson分布，则它不可能取0值

E.Poisson分布是离散型随机变量的概率分布

鼓励创新思维的群体决策方法是（）。

A.头脑风暴法

B.名义群体法

C.德尔菲法

D.电子会议