为了评定和控制外加剂产品的质量,对于减水剂、引气减水剂、引气剂、早强剂,缓凝剂等常做

题型:单项选择题

问题:

为了评定和控制外加剂产品的质量,对于减水剂、引气减水剂、引气剂、早强剂,缓凝剂等常做的检测项目是()。

A.水泥水化热

B.泌水率比

C.混凝土极限拉伸

D.混凝土静力抗压弹性模数

考点:试验检测员水运工程结构试验检测人员考试(综合练习)水运工程结构试验检测人员考试(综合练习)题库
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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!

Connie Pratt soon became a famous actress by________.

A.learning some lessons about the art of speaking

B.once 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

题型:单项选择题

从土地利用详细规划的作用来看,有两种类型,即()。

A.控制性土地利用详细规划和建设性土地利用详细规划

B.控制性土地利用详细规划和使用性土地利用详细规划

C.建设性土地利用详细规划和使用性土地利用详细规划

D.控制性土地利用详细规划和开发性土地利用详细规划

题型:单项选择题

脊髓灰质炎疫苗初种的年龄是()。

A.2个月

B.3个月

C.4个月

D.5个月

E.6个月

题型:单项选择题

美国宪法被认为是世界上最具稳定性的一部宪法,自其颁布以来的200多年中,美国发生了翻天覆地的变化,但宪法却没有作太大的修改。请问下列关于美国现行宪法制定时间的表述中哪一选项是正确的

A.1776年第一届大陆会议

B.1787年费城会议

C.1789年

D.1790年

题型:单项选择题

一次切开挂线手术法适用于:()

A.肛门旁皮下脓肿

B.皮下瘘管

C.高位脓肿

D.肛裂

E.肛窦炎

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