标准状况下，将一盛满HCl的试管倒置于水槽中，液体最终充满整个试管，假定溶质不扩

发布时间：2017-05-23 17:00 │ 来源：www.tikuol.com

题型：选择题

问题：

标准状况下，将一盛满HCl的试管倒置于水槽中，液体最终充满整个试管，假定溶质不扩散，则试管内盐酸的浓度为（　　）

A．0.045mol．L^-1

B．1.00mol．L^-1

C．0.029mol．L^-1

D．无法确定

考点：物质的量浓度

题型：选择题

阅读理解。

        A friend of mine whose name was Martin Brown was so forgetful that he sometimes forgot what he was
talking about in the middle of a sentence . His wife had to always remind him about his appointments (约会), his
classes or even his meals! Since Martin was a professor at a well-known university , his forgetfulness often
caused him a lot of trouble. It wasn't that he was unintelligent (愚钝的). He was just very, very absent-minded .
        One hot summer day , Professor Brown decided to take his children to the beach . The seaside town he
planned to visit was about a three-hour train ride away. To make the trip more interesting for his young children,
he kept the name of the town a secret . Unfortunately (遗憾地，不幸地), by the time Martin had arrived at the
train station , the poor forgetful man had forgotten the name of the town . Luckily , a friend of his happened to
be in the station . He offered to take care of the children while Martin went back home to find out where he was
going .
        The professor's wife was surprised to see him back again so soon , but she laughed when she heard what
was the matter . She distrusted his memory , so she wrote the name of the town on a piece of paper . Satisfied
that she had solved the problem , she sent her husband off again . Ten minutes later , she was astonished (吃惊
的) to see him outside the house again . What was the matter then ? The professor had forgotten where he had
left his children .

1. According to the story which statement is TRUE ?

A. Martin was so forgetful that he could hardly teach his students .
B. Martin had a lot of trouble because he was unintellingent .
C. Though he was clever , he was very absent-minded .
D. Martin was a trouble-maker .

2. Martin kept the name of the town a secret because .

A. he wanted to give the children a surprise
B. he wanted to add more fun to the trip
C. he thought to keep a secret was interesting
D. he didn't know the name of the town at all

3. Which statement is NOT TRUE ?

A. Martin didn't know where to go at all .
B. It would take them three hours to get to that seaside town by train .
C. Before he got on the train Martin had forgotten the name of the town .
D. None of his children knew which town they would go to .

4. Martin's wife his memory , so she wrote the name of the town on a piece of paper .

A. didn't believe
B. did believe in
C. believed
D. had no belief in

5. The story about Professor Brown tells us .

A. he lost his children
B. he was unfit to be a professor
C. clever people are often absent-minded
D. one's forgetfulness will bring about a lot of trouble to others

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It’s my to make sure that the disabled people in our neighborhood have access to all public buildings.

A．ambition

B．behavior

C．dignity

D．assistance

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男性，67岁。咳嗽、痰血2周，伴低热来院门诊。体检：一般情况可，浅表淋巴结不大，右上肺呼吸音降低。心（-），轻度杵状指。胸部平片示右上叶前段阻塞性肺炎（）

A.痰找癌细胞

B.支气管镜检查

C.痰找抗酸杆菌

D.纵隔镜

E.肺CT

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以下选项中哪个是新公共行政学的特征（）

A.追求效率有效实行

B.将经济效益做为核心价值和最终目标

C.对社会公平价值观的提倡

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结构上采用高抗剪铆钉、抽钉，除特殊规定外，钉孔一律按（）铰制，孔的表面粗糙度为。

A.H8

B.H11

C.H9

D.H10

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