传统的天气预报方法是指()A、数值预报方法 B、卫星云图预报方法 C、天气图预报方法

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问题:

传统的天气预报方法是指()

A、数值预报方法

B、卫星云图预报方法

C、天气图预报方法

考点:气候环境保护知识竞赛气候环境保护知识竞赛题库
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啤酒中几种主要风味(缺陷)物质的阈值是:异戊醇();乙醛();丁二酮()。

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Dear Ralf,

I have received your letter from school and am glad to know that you are becoming responsible(有责任的)enough to decide on your career.

You are now in the final year of college and are about to start more independent life in society. You know that a generation divides us, and the conditions of social life were different in my days. However, all I can say as advice is that you must select a career wisely. The first consideration is your interest. You can only succeed and feel happy when you do something you enjoy. Your job must be both gainful and satisfying. Then, you must read up on the latest books on the field you are aiming at. Also, you should get familiar with the men and women in the profession of that field. When mind and heart function together, success is inevitable(必然的).

No career is more or less important than any other career. It takes different people to operate the machine of life. I think your interest may lie in the field of making TV programs. Your great communication skills, your active participation(参与) in school plays and the prizes you have won in speech competitions all point in that direction. So a career in Mass Communication and TV film production proves suitable for you. If you succeed and make it in that field, fame and treasure will both follow.

Think a thousand times before making any final decision regarding your career. Anyhow, I want you to be a man of success.

I know that you are mature(成熟的) enough to think for yourself.

With all the best wishes!

Your loving father

56. We can infer that Ralf wrote a letter to ask for advice on how to ________.

A. prepare for a competition.                         B. communicate with others

C. choose a career                                         D. get good marks

57. What can we know about Ralf?

A. He has graduated from college.               B. He gets on badly with his father.

C. He has taken part in school plays.           D. He won prizes in the field of making films.

58. Ralf’s father thinks that ________.

A. fame is more important than treasure

B. every career is of the same importance

C. Ralf is too young to make a decision himself

D. there is no real understanding between parents and children

59. The father suggests that his son should ____________.

A. consider his interest first when choosing a career.

B. make friends with successful people.

C. be never proud when making progress

D. be active in school activities.

题型:单项选择题

中度脑外伤GCS评分是()。

A.GCS评分4~7分

B.GCS评分≤8分

C.GCS评分8~10分

D.GCS评分9~12分

E.GCS评分l3~15分

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天线工程中计算馈线长度时经常需要知道电波在馈线中的传播速度。常用业余频段的电波在同轴电缆中的传播速度大约是多少?

题型:单项选择题

原油及油品蒸气对人的机体产生的有害作用称为毒性。

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