自来水厂对天然水进行人工净化的过程中,通常不会采用 A.电解 B.吸附 C.过滤

题型:选择题

问题:

自来水厂对天然水进行人工净化的过程中,通常不会采用

A.电解

B.吸附

C.过滤

D.消毒

考点:水的净化硬水和软水自然界水的循环海水淡化
题型:选择题

DBTG系统的数据结构模型属于 ______。

题型:选择题

WILD WEATHERMAN

Name: Sam Champion

Hot job: TV Weatherman

Where: WABC-TV, New York City

When you were a child, did you plan to forecast wind, rain, and snow on TV?

I wanted to be a foreign journalist.I took courses in weather science at Eastern Kentucky University, but I majored in broadcasting news.

How did you finally become a weatherman?

My first job in the early 80’s was at the local TV station in Paducah, Kentucky.I did everything from turning on the lights in the morning to writing and delivering morning news.I put together weather forecasts, and became interested in them.

Back then, how did you forecast weather?

Independent companies collected computer information that showed, for example, how a single weather system might split into snow or snow mixed with rain.The information was often opposite and the job of a weatherman was to study the information and make the best educated guess about the storm.

Has weather forecasting changed much with new technology?

Advanced computers, satellites, and Doppler radar (sound waves used to track storms) have made forecasting more exact.But we still know very little about how weather is shaped.So far, we just have theories.

Any advice for children who’d like to become weather scientists?

To me, weather is the most exciting field in the world.There are still so many more questions about weather than answers.After all, if we can’t foresee floods or hurricanes, how safe a society are we? Weather forecasting is wide open for scientists who love to solve puzzling problems.The next generation of meteorologists (weather scientists) will unlock many of Earth’s weather secrets.So get a general knowledge of Earth science, and study meteorology (weather science) in college.

Thanks, Sam.                                

1.Judging from the writing style, the text is ________.

A.a diary   B.an interview     C.a news story     D.an announcement

2.As a child, ABC-TV’s Sam Champion wanted to be a ________.

A.space scientist  B.weatherman     C.news reporter   D.meteorologist

3.Present weather forecasting technology ________.

A.has made weather report more exact than ever            

B.is still not perfect

C.hasn’t changed much in the last 50 years                           

D.both A and B

4.The study of weather science is called ________.

A. meteorology   B. forecasting    C .geography      D. earth science

题型:选择题

类风湿关节炎的病变应除外()

A.滑膜表面大量纤维素性渗出物

B.滑膜绒毛状增生及血管翳形成

C.滑膜中淋巴细胞和浆细胞浸润

D.可形成大量类风湿小结

E.晚期形成骨性关节强直

题型:选择题

诊断腰椎脱离,最准确的诊断方法是()

A.侧位X光平片

B.矢状面MRI

C.45°斜向X光片

D.有骨窗的CT

E.前后位X光片

题型:选择题

企业实施并购重组后,要进行跨文化的管理,其主要包括四个步骤,及识别文化差异、控制和利用文化差异、防范文化差异带来的冲突、进行文化整合,其中核心的步骤是()。

A、识别文化差异

B、控制和利用文化差异

C、防范文化差异带来的冲突

D、文化整合

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