对南美洲地形的说法错误的是（）A．西部是年青、高大的安第斯山脉 B．东部平原与高原相

阅读理解。

       Mr. Smith works in an office. He's very busy and has no time to have a good rest. Every evening,

  when he comes back from his office, he's always tired and wants to go to bed early. But his wife always

  has a lot of interesting things to tell him after supper. She doesn't stop talking until she goes to sleep.

       One day Mr. Smith feels terrible and can't go to work. He goes to see a doctor. And Mrs. Smith goes

   to the hospital with him. Before her husband says what is the matter with him, the woman tells the doctor

  all about her husband and the doctor understands why. He writes out a prescription. And when

  Mrs. Smith takes the medicine to the doctor's room, the doctor says to her, "This kind of medicine is for

  your husband and the pills are for you."

       "For me?" the woman says in surprise. "I'm fine. I don't need any medicine!"

       "I don't think so, madam," says the doctor. "They are sleeping pills. Your husband will be all right if

  you take them."

1. What do you think of Mr. Smith's work?

A. Easy      

B. Happy    

C. Busy    

D. Lucky    

2. Mrs. Smith is very _____.

A. quiet      

B. outgoing    

C. serious  

D. careful

3. Mr. Smith and Mrs. Smith go to the hospital because _____.

A. something is wrong with Mrs. Smith  

B. something is wrong with Mr. Smith    

C. something is wrong with both of them    

D. they want to see someone.

4. The doctor thinks the man can't go to sleep because _____.

A. he works too hard          

B. he is badly ill

C. the woman speaks too much  

D. the woman is badly ill.

5. Which is Not talked about in this passage?

A. Mr. Smith is very busy and tired.

B. Mr. Smith felt something wrong with himself.

C. Mrs. Smith felt something wrong with herself.

D. The Smiths went to see the doctor and talked a lot to him.

分类的基本单位是

A．门

B．纲

C．种

D．属

双链表的每个结点包括两个指针域。其中rlink指向结点的后继，llink指向结点的前驱。 如果要在p所指结点后插入q所指的新结点，下面哪一个操作序列是正确的

A．p↑.flink↑.llink：＝q；p↑.rlink：＝q；q↑.llink：＝p；q↑.rlink：＝p↑.flink；

B．p↑.llink↑.flink：＝q；p↑.llink：＝q；q↑.flink：＝p；q↑.llink：＝p↑.llink；

C．q↑.llink：＝p；q↑.flink：＝p↑.fiink；p↑.rlink↑.llink：＝q；p↑.flink：＝q↑；

D．q↑.rlink：＝p；q↑.llink：＝p↑.llink；P↑.llink↑.rlink：＝q；p↑.llink：＝q；

某地拟新建污水处理厂及配套管网工程，总投资2.5亿元。设计规模为日处理污水15万吨，配套管网总长50km。污水处理工艺采用A/O法，厂内各单元构筑物均按工艺及规模要求建设，同时厂内建有综合办公楼及锅炉房等设施。该项目项目南侧为农田，东侧为公路。北侧2km处为一条中河，水体功能为Ⅳ类，项目处理后的尾水即排入该河。该项目需对一村庄进行拆迁，共设计村民86户、343人。

试述项目施工期噪声污染来源及减缓措施。

为了保证安全作业，人力操作中男工人力搬运货物每件不超过（）kg，距离不大于（）m。