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    下列划线字的读音无误的一项是（  ）（2分）
    A．颓唐tuí讪笑shàn陨落 yǔn唾手可得 tuò
    B．游逛 guàng轻蔑 mèi鄙视 bǐ孤苦伶仃 dīng
    C．骚乱 shāo蹒跚 shān狼藉 jí不能自已yǐ
    D．惨淡 cǎn勒转 lē懵懂 měng喋喋不休 diédié

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    下列句子中没有语病的一项是（     ）（2分）
    A．住房城乡建设部公布，截至2011年10月底，全国城镇保障性安居工程开工已超过1000万套，实现了年初计划的目标任务。
    B．八国集团在德国关于气候变暖问题作出了一项声明，希望世界上发达国家在2050年之前，能够使污染物的排放量减少两倍。
    C．国家安监总局要求云南煤矿安监局科学制定救援方案，千方百计抢救被困人员，严防不再发生次生事故。
    D．国务院日前实施批准《河北沿海地区发展规划》，这是国家进一步贯彻落实区域发展总体战略、支持东部地区率先发展的又一重大举措。

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    下面的短文由六个段落组成，开头和结尾已给出，其余的四个段落均是随机排列的。请根据段落之间的逻辑关系。用字母A、B、C、D重新排列这四个段落的顺序，使短文通顺。
         Before you attend an interview, you should do some preparation. This will not only give you confidence, but will also help make the interview a success.
         1. During the interview, look at the interviewer even if you are very nervous and shy. Communication
    between eyes is important in an interview.
         2. First, do some research on the company. What does the company do? Does it make or design
    things?  Does it provide a service?  If the company has a website, visit website and find out a little more
    about the company.
         3. You should also prepare one or two questions. At the end of the interview, it is usual for the
    interviewer to invite you to ask some questions. It can be a simple question like "When will you let me
    know if I've been successful? " If you do not have any questions, the interviewer may think that you are
    not very interested in the job.
         4. Before you go into the interview room, knock on the door. It is one of the ways to show that you
    are polite. Then you will probably hear someone say "Come in!" and you will know it is time to go into
    the room..
         At the end of the interview, shake the interviewer's hand Remember to thank the interviewer before
    you leave.
    1. _______ 2. _______ 3. _______ 4. _______

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    下面的短文由六个段落组成，开头和结尾已给出，其余的四个段落均是随机排列的。请根据段落之间的逻辑关系，用字母A、B、C、D重新排列这四个段落的顺序，使短文通顺。

        Samuel Clemens was born in 1835，Missouri．When he was four，his family moved to the town of Hannibal，a port on the Mississippi River，and Clemens loved to watch the big steamboats going up and down the river．He said that all the boys in his school had one ambition in life：to work on a steamboat．

    1．In 1857, he achieved his ambition and got a job working on a steamboat. He sailed up and down the wide Mississippi River until the American Civil War began.

    2．His father died when he was just 12 years old and Clemens then went to work for a printer to help support his family. He traveled around, and worked in many different cities.

    3．In 1865,Clemens wrote a story about a jumping frog with his pen-name. The story and the writer became famous. After that, he wrote many books, including The Adventures of Tom Sawyer. It was published in 1876. He also gave many lectures, and became a very famous and popular man.

    4．Clemens moved around the USA on the steamboat, and tried several jobs. He was a soldier, and a silver miner. And then he started working as a writer for a newspaper. At this time, he decided to use a pen-name for his stories, and he chose the name "Mark Twain". Samuel Clemens died in 1910. He is considered to be one of the greatest writers in American history

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    下列群落的演替类型中，属于初生演替的是               
    A．外来物种入侵，改变群落物种组成B．弃耕农田上长出杂草、灌木
    C．在火山岩上长出地衣　D．对砍伐后的森林进行封山育林

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