与口腔黏膜病关系最密切的口腔微生物是() A.螺旋体 B.白色念珠菌 C.病毒 D.

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问题:

与口腔黏膜病关系最密切的口腔微生物是()

A.螺旋体

B.白色念珠菌

C.病毒

D.支原体

E.原虫

考点:广西口腔住院医师规范化培训基础知识综合练习基础知识综合练习题库
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龈下菌斑分为()和()。

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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 to go 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 last line means ______.

A. all at once                  

B. once for a long time

C. once in a while              

D. once and for all

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简述物资储存的作用。

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信令网通常由信令点,信令转接点和信令链路三部分构成

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多发性硬化的临床表现下列哪项是错误的()

A.发病年龄多在20~40岁

B.首发症状多为肢体力弱、单眼或双眼的视力下降、复视、共济失调等

C.临床特征是绝大多数患者在临床上表现为空间和时间的多发性

D.临床症状和体征的特点是体征常多于症状

E.因大脑、脑干、小脑、脊髓和周围神经可同时或相继受累,故其临床症状和体征多种多样

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