-2-|-3|+(-2)2.

题型:解答题

问题:

-2-|-3|+(-2)2

考点:有理数的混合运算
题型:解答题

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.

题型:解答题

美国《商业周刊》对一次会议评论称,美国企图把中国“无限期排斥在世界外交舞台之外”的幻想被粉碎。这次会议是:

A.1954年日内瓦会议

B.1955年亚非会议

C.1961年不结盟首脑会议

D.1971年第26届联大

题型:解答题

热痉挛出现阵发性、对称性痉挛最常见的部位为()

A.背阔肌

B.咀嚼肌

C.腹直肌

D.腓肠肌

E.胸大肌

题型:解答题

《建设项目环境影响评价资格证书管理办法》规定:环境影响评价资质分为( )。

A.A、B、两个等级
B.甲、乙、丙、丁四个等级
C.A、B、C、三个等级
D.甲、乙两个等级

题型:解答题

下列关于遗传信息传递的叙述,错误的是()

A.线粒体和叶绿体中遗传信息的传递遵循中心法则

B.DNA中的遗传信息是通过转录传递给mRNA的

C.DNA中的遗传信息可决定蛋白质中氨基酸的排列顺序

D.DNA病毒中没有RNA,其遗传信息的传递不遵循中心法则

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