关于温度,热传递和热量,下列说法中正确的是[ ] A.温度高的物体具有的热量多

题型:选择题

问题:

关于温度,热传递和热量,下列说法中正确的是[ ]

A.温度高的物体具有的热量多

B.热量总是从热量多的物体传递到热量少的物体

C.热量总是从温度高的物体传递给温度低的物体

D.温度低的物体含有的热量少

考点:温度、热量与内能的关系
题型:选择题

Public Speaking and Critical thinking

What is critical thinking? To a certain degree, it's a matter of logic -- of being able to spot weakness in other people's arguments and to avoid them in your own. It also includes related skills such as distinguishing fact from opinion and assessing the soundness of evidence.

In the broad sense, critical thinking is focused, organized thinking -- the ability to see clearly the relationships among ideas. ___. The greatest thinkers, scientists, and inventors have often taken information that was really available and put it together differently to produce new ideas.That, too, is critical thinking.

__   _. As the class goes on, for example, you will probably spend a good deal of time organizing your speeches. While this may seem like a purely mechanical (机械的) exercise, it is closely connected with critical thinking. If the structure of your speech is loose and confused, chances are that your thinking is also disordered and confused. If, on the other hand, the structure is clear, there is a good chance your thinking is too. Organizing a speech is not just a matter of arranging your ideas you already have. ____.

What is true of organization is true of many aspects of public speaking. ____. As you work on expressing your ideas in clear accurate language, you will improve your ability to think clearly and accurately. __    As you learn to listen critically to speeches in class, you will be better able to assess the ideas of speakers in a variety of situations.

If you take full advantage of your speech class, you will be able to develop your skills as a critical thinker in many circumstances. This is one reason public speaking has been regarded as a vital part of education since the days of ancient Greece.

A.Rather, it is an important part of shaping the ideas themselves.

B.This may seem take a lot of time, but the rewards are well worth it.

C.It may also help you to know that there is no such thing as a perfect speech.

D.It has often been said that there are few new ideas in the world, only reorganized ideas.E. If you are wondering what this has to do with your public speaking class, the answer is quite a lot.

F. The skills you learn in your speech class can help you become a more effective thinker in a number of ways.

G. As you study the role of evidence and reasoning in speechmaking, you will see how they can be used in other forms of communication as well.

题型:选择题

(1)由2个C原子、1个O原子、1个N原子和若干个H原子组成的共价化合物,H原子数目最多为____个。试写出其中一例的结构简式____。

(2)若某共价化合物分子中只含有C、H、N三种元素,且以 n(C)和n(N)分别表示C和N的原子数目,则H原子数目_________最多等于 。

(3)若某共价化合物分子中只含有C、N、O、H四种元素,且以n(C)、n(N)和n(O)分别表示C、N和O的原子数目,则H原子数目最多等于_________。

题型:选择题

腰椎间盘突出症出现鞍区麻木,二便功能障碍,系突出间盘压迫

A.脊髓

B.脊髓圆锥

C.马尾神经

D.骶1神经根

E.骶2神经根

题型:选择题

下述哪是腹膜透析的相对禁忌证()

A.多囊肾

B.妊娠

C.马蹄肾

D.腹腔粘连

E.双肾盂畸形

题型:选择题

对托运人或收货人所提出赔偿要求的审理是一项履行()的法律行为,在处理赔偿时,要严格执行国家的法律和有关规章规定,要重合同,守信用。

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