艾滋病病人出现神经系统症状者可达30%～70%。其中不包括A．脑弓形虫病 B．吉兰-

短文改错

       假如英语课上老师要求同学们交换修改作文，请你修改你同桌写的以下作文。文中有10处错误，要求你在错误的地方增加、删除或修改某个单词。

       增加：在缺词处加一个漏字符号(∧)，并在其下面写上该加的词。

       删除：把多余的词用斜线(＼)划掉。

       修改：在错的词下划一横线，并在该词下面写上修改后的词。

       注意：1. 每处错误及其修改均仅限一词。

       2. 只允许修改10处，多者(从11处起)不计分。

     We are often warned by our teachers not to waste time because losing time will never return.Nobody

in the world knows what time looks like, but we can't see or touch it. Time flies very quick. Some students

say they don't have enough time to review his lessons. In my opinion, the reason why they say so is

because they don't know how to make use of their time. People often regard time to life  because life is

short. So we must devote our time and energy our studies. Laziness is the thief of  times, for it not only

brings us a failure, but also do harm to us. We should never put off what should be done today till

tomorrow.

____________________________________________________________________________

根据对话内容，在每个标有题号的空白处填入一个适当的句子，使对话完整，合乎情景。

D: Good morning. What's your trouble?

W: I don't feel very well.

D: 1.                                                       

W: Yes, I have. My temperature is a little higher.

D: Open your mouth say "Ah".

W: Aahh.

D: 2.                                                      

W: Ever since last night.

D: Did you sleep well?

W: No. I was very tired last night.

D: Oh, I see. 3.                                                       

W: Can you tell me how I got a cold?

D: Maybe you overtired (使过度疲劳) yourself.

W: I think so. I have too much work to do every day. Do I have to stay at home?

D: Yes. You'd better stay at home for two or three days.

W: 4.                                                     

D: No. I don't think it is too serious. But you really need a good rest and take this medicine.

W: 5.                                                     

D: Three times a day.

W: OK. Thank you.

甲收藏的《祖国山河一片红》邮票为其邻居乙(镇长)所喜欢，但乙又不愿以市场价购买。2001年，甲申请宅基地建房，乙得知后指示相关人员拖延不办。甲找到乙，乙说如果甲将《祖国山河一片红》邮票以2000元卖给他，则宅基地一事可以办成。2001年3月7日，甲出于无奈，按照乙的要求将该邮票转让给乙，因邮票存放在其表哥丙处，甲立字据承诺10日内交货。5日后，甲的宅基地申请获准。10日后，乙向甲索要邮票时，被告知该邮票已于3日前被丙擅自以市场价卖给了不知情的丁，双方钱货两讫，甲表示退回邮票款，乙不允，向法院起诉，请求判令甲交付邮票。甲提出反诉，请求撤销邮票买卖合同。

甲请求撤销邮票买卖合同，其撤销权行使的期限是( )。

A．2001年9月7日前

B．2002年3月7日前

C．2003年3月7日前

D．2005年3月7日前

瓦斯是一种无色、无味、无嗅的气体，比空气轻。

市场分析中收集资料的过程就是（）。

A、调查过程

B、分析过程

C、分析预测

D、预测过程