我们在学习生活中有时会后悔:我要再努力一点,不就不会失败而成功了吗?这从哲学上启

题型:选择题

问题:

我们在学习生活中有时会后悔:我要再努力一点,不就不会失败而成功了吗?这从哲学上启示我们要( )

①划清界限,认识把握成功和失败的本质区别

②精益求精,努力促成事物发展,走向成功

③揭示共性,寻找成功与失败之间的共同之处

④求真务实,把革命热情和科学态度结合起来

A.①②

B.①③

C.②④

D.③④

考点:运动和发展及发展的实质发展的普遍性发展的趋势——前途光明,道路曲折发展的状态——量变与质变
题型:选择题

已知某转运RNA(tRNA)一端的3个碱基顺序是GAU,它运载的是亮氨酸(亮氨酸的密码子是UUA、UUG、CUU、CUA、CUC、CUG),那么决定此亮氨酸的密码子是由DNA模板链上的哪个碱基序列转录而来的[ ]

A.GAT

B.GAU

C.CUA

D.CAT

题型:选择题

D

Have you ever noticed what happens to an idea once you express it? Just talking about it or writing it down causes you to make it clear in your own mind. How can you use this to increase your brain power? Start writing.

By putting thoughts into words, you are telling yourself the logic(逻辑) behind what you think, feel, or only partly understand. Often, explaining a thought is the process of understanding. In other words, you increase your brain power by exercising your “explain power.”

Try this experiment. Explain how you’ll increase your brain power, even if you have no idea how right now. Just start with anything, and create an explanation. For example, start with “I’ll learn chess,” or “I’ll read an article on the mind every week.” Explain how that will help. You’ll be surprised how often this becomes a workable plan, and if you actually do this, you’ll have a better understanding of your brain twenty minutes from now.

Another benefit of writing is that it helps you remember. Many, if not most, highly productive people are always taking notes. You can try keeping it all in your head, but if you keep a journal of your ideas the next time you’re working on a big project, you’ll probably have more success.

Want to understand a topic? Write a book about it. That’s an extreme example, but if you are learning something new, write a letter to a friend about it, and you will understand it better. Want to invent something? Write an explanation of the problem, why you want to solve it, and why it is worth solving, and you’re half-way there.

Writers don’t always write because they clearly understand something beforehand. Often, they write about something because they want to understand it. You can do the same. Writing will help bring you to an understanding. Give it a try.

71. What would be the best title for the text?

A. A Way on How to Write

B. Increase Your Brain Power through Writing

C. Brain Power Helps Improve Your Writing

D. How to Start Your Writing

72. According to the text, writing can help you a lot in the following ways EXCEPT ______.

A. the increase of your brain power

B. the ability to remember

C. the development of your interest in study

D. the better understanding of a topic

73. If a writer writes something, it means that he or she _______.

A. has understood it very well

B. needs to understand it better

C. wants to remember it in his or her mind

D. is exercising his or her “explain power”

74. The underlined sentence “you’re half-way there” in the fifth paragraph implies that ______.

A. you are already successful

B. you still need to work hard

C. writing can help you walk half way

D. writing is important to solve problems

75. What’s the main purpose of the writer writing the text?

A. To advise readers to start their writing.

B. To explain the importance of writing.

C. To persuade readers to become writers.

D. To increase readers’ brain power.

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以下四组用户自定义标识符中,全部合法的一组是( )。

A._main
enclude
sin

B.If
- max
turbo

C.txt
REAL
3COM

D.int
k_2
_001

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长期酗酒对人体健康是有害的。

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文献信息检索系统的构成要素不包括以下哪些()。

A.信息资源

B.设备

C.方法与策略

D.信息存储

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