选举法关于代投票的规定有( )。A．选民如果是文盲或者因残疾不能写选票的，可以委托

Jack was ten years old and he was a very lazy boy. He didn’t like doing any work. He had to go to school, of course, but he didn’t study hard there and tried to do little work. His father and mother were both doctors and they hoped that their son would become one too when he grew up. But one day Jack said to his mother, “When I finish school, I want to be a dustman(垃圾工).”

“A dustman?” his mother asked. She was very surprised. “That’s not a good job. Why do you want to become a dustman?”

“Because I would only have to work one day a week,” Jack answered at once.

“Only one day a week?” his mother said. “What do you mean? And how do you know?”

“Well,” Jack answered, “I know that the dustman came to work on Thursday every week, because I only see them on that day.”

小题1:How was Jack doing at school?

A．He liked his school.

B．He worked hard at school.

C．He didn’t study hard at school.

D．He tried to do much work at school.小题2:Jack’s parents wanted their son to be a                .

A．doctor

B．dustman

C．teacher

D．worker小题3:Jack hoped to be a dustman because he thought                    .

A．that job was very important

B．the dustman worked only on Thursday

C．he could make more money

D．that was a dirty job小题4:Jack’s mother felt surprised at his hope of being a dustman, because          .

A．their son was too young to be a dustman

B．a dustman worked only one day a week

C．it was hard to get such a job

D．that was not a good job小题5:What do you think of Jack?

A．He was not very clever.

B．He was very lazy.

C．He liked the dustman’s work.

D．He didn’t want to be a doctor.

分数的分母越小，它的分数单位就越大。[ ]

男性，30岁。因眼睑和下肢水肿5天就诊。5年前曾患"急性肾炎"BP21．3／14kPa（160／105mmHg），双踝部轻度凹陷性水肿，尿常规：蛋白（++），RBC8～10个／HP，WBC0～1个／HP，血Cr106．1μmol／L。

若病人CCr（肌酐清除率）19ml／min，血钾4．1mmol／L，尿量1600ml／d，应选（）

A.血液透析

B.腹膜透析

C.优质蛋白饮食，蛋白摄入量0.6ｇ／（kg·D.

D.优质蛋白饮食，蛋白摄入量1.0ｇ／（kg·D.

E.呋塞米

患者，女，31岁。大便溏泻，纳谷不香，心悸失眠。用药宜首选（）

A.莲子

B.芡实

C.金樱子

D.山药

E.磁石

铁路运输的特点有（）。

A.运费很高

B.运输速度快

C.受自然因素影响小

D.机动性好

E.运输能力大