产后病的定义描述错误的是（） A.产妇在新产后 B.与分娩有关的疾病 C.与产褥有关

“友情是生命中的一盏明灯，离开它，生命就失去了光彩；离开它，生命就不会开花结果。”巴金的这段话告诉我们[     ]

A、生活离不开朋友，人生离不开友情

B、友情比生命更重要

C、交什么样的朋友，对个人成长、发展有很大作用

D、友情要讲究真诚

阅读理解。

     Acting is such an over-crowded profession that the only advice that should be given to a

young person thinking of going on the stage is "Don't!". But it is useless to try to discourage

someone who feels that he must act, though the chances of his becoming famous are slim. The

normal way to begin is too to a drama school. Usually only students who show promise and

talent are accepted, and the course lasts two years.

Then the young actor or actress takes up work with a repertory company, usually as an assistant

stage manager. This means doing everything that there is to do in the theatre: painting scenery,

looking after the furniture, taking care of the costumes, and even acting in very small parts. It is

very hard work indeed. The hours are long and the salary is tiny. But young actors with the stage

in their blood are happy, waiting for the chances of working with a better company, or perhaps

in films or television.

     Of course, some people have unusual chances which lead to fame and success without this

long and dull training. Connie Pratt, for example, was just an ordinary girl working in a bicycle

factory. A film producer happened to catch sight of her one morning waiting at a bus stop, as he

drove past in his big car. He told the driver to stop, and he got out to speak to the girl. He asked

her if she would like to go to the film studio

to do a test, and at first she thought he was joking. Then she got angry and said she would call the

police. It took the producer twenty minutes to tell Connie that he was serious. Then an appointment

was made for her to go to the studio the next day. The test was successful. They gave her some

necessary lessons and within a few weeks she was playing the leading part opposite one of the

most famous actors of the day. Of

course, she was given a more dramatic name, which is now world-famous. But chances like this

happen once in a blue moon!

1. According to the passage, the main reason why young people should be discouraged from becoming

actors is ________.

A. actors are very unusual people

B. the course at the drama school lasts two years

C. acting is really a hard job

D. there are already too many actors

2. According to the context, the sentence "But young actors with the stage in their blood are happy" at

    the end of the first paragraph means ________.

A. they don't care if their job is hard

B. they like the stage naturally

C. they are born happy

D. they are easily satisfied

3. Connie Pratt soon became a famous actress after ________.

A. learning some lessons about the art of speaking

B. playing her part in the "Blue Colored Moon"

C. successfully matching the most famous actors

D. acting a leading part with a most famous actor at that time

4. The phrase "once in a blue moon" in the last line of the passage means ________.

A. all at once                    

B. once for a long time

C. once in a while                

D. once and for all

在北京举行的第二十九届奥林匹克运动会已落下帷幕．在奥运会的体育比赛项目中，撑杆跳高是指运动员双手握住一根特制的轻杆，经过快速助跑后，借助轻杆撑地的反弹力量，使身体腾起，跃过横杆．当今男子世界记录达到了6.14m在本届奥运会上俄罗斯选手伊辛巴耶娃创造了女子撑杆跳高新的世界纪录，成绩达到5.05m．这是一项技术性很强的体育运动，可以简化成三个阶段，助跑、起跳撑杆上升、越杆下降落地．（g=10m/s² ）问：

（1）如果运动员只是通过借助撑杆把助跑提供的动能转化为上升过程中的重力势能，那么运动员助跑到10m/s后起跳，最多能使自身重心升高多少？

（2）若运动员体重75kg，助跑到8m/s后起跳，使重心升高5m后越过横杆，从最高点到落地过程中水平位移为2m，运动员在最高点水平速度为v为多少？

（3）在第（2）问的过程中，该运动员起跳撑杆上升阶段至少把多少体内生物化学能转化成机械能？

《特种设备作业人员监督管理办法》规定，考试合格的人员，（），向发证部门申请办理《特种设备作业人员证》。

A、凭考试结果通知单

B、凭相关证明材料

C、凭考试结果通知单和其他相关证明材料

D、凭身分证

（）主要反映建筑物承重结构的布置、构件类型、材料、尺寸和构造做法等，是基础、柱、梁、板等承重构件以及其他受力构件施工的依据。

A.建筑施工图

B.设备施工图

C.结构施工图

D.建筑设计图