试题与答案

下图为人体神经元细胞模式图。请据图回答问题。 (1)④中的物质释放到⑤的方式是

题型:读图填空题

题目:

下图为人体神经元细胞模式图。请据图回答问题。

(1)④中的物质释放到⑤的方式是_________,这一功能主要由细胞质中[    ]______完成。

(2)若刺激A点,图中电流计B将偏转_____次。若刺激C点,电流计B将偏转______次。

(3)如果抑制该细胞的呼吸作用,发现神经纤维在一次兴奋后,其细胞膜不能再恢复到外正内负的状态,这说明神经元恢复到静息状态时,其带电离子通过细胞膜的方式为_____________。

(4)已知④中的某物质可使突触后膜兴奋,当完成一次兴奋传递后,该种物质立即被分解。某种药物可以阻止该物质的分解,这种药物的即时效应是__________。

(5)突触前膜是________末端突触小体的膜;突触间隙的液体是____________。

答案:

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题型:填空题

根据所给词的适当形式填空。

1. Brush my teeth ________ (two) a day.

2. _________ (drive) a car is much faster than taking a bus.

3. This book is very interesting. I ________ (real) like it.

4. Our school is a_________ (mix) school. A lot of students study here.

5. Don't worry about me. I can do it well by ______ (I).

6. Would you please __________ (not open) the door? It's so cold.

7. Eating too much will make you much ________ (fat) than before.

8. Kitty is my friend, and I like her big, ________ (smile) eyes.

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10."Keep your mouth open ________ (wide)," said the doctor.

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题型:单项选择题

Questions 65-71 are based on the following passage.
Questions of education are frequently discussed as if they bore no relation to the social system in which and for which the education is carried on. This is one of the commonest reasons for the unsatisfactoriness of the answers. It is only within a particular social system that a system of education has any meaning. If education today seems to deteriorate, if it seems to become more and more chaotic and meaningless, it is primarily because we have no settled and satisfactory arrangement of society, and because we have both vague and diverse opinions about the kind of society we want. Education is a subject which cannot be discussed in a void: our questions raise other questions, social, economic, financial, political. And the bearings are on more ultimate problems even than these: to know what we want in education we must know what we want in general, we must derive our theory of education from our philosophy of life. The problem turns out to be a religious problem.
One might almost speak of a "crisis" of education. There are particular problems for each country, for each civilization, just as there are particular problems for each parent; but there is also a general problem for the whole of the civilized world, and for the uncivilized so far as it is being taught by its civilized superiors; a problem which may be as acute in Japan, in China or in India as in Britain or Europe or America. The progress (I do not mean extension) of education for several centuries has been from one aspect a drift, from another aspect a push; for it has tended to be dominated by the idea of "getting on". The individual wants more education, not as an aid to acquisition of wisdom but in order to get on; the nation wants more in order to get the better of other nations, the class wants to get the better of other classes, or at least to hold its own against them. Education is associated therefore with technical efficiency on the one hand, and with rising in society on the other. Education becomes something to which everybody has a "right", even irrespective of his capacity; and when everyone gets it—by that time, of course, in a diluted and adulterated form—then we naturally discover that education is no longer an infallible means of getting on, and people turn to another fallacy: that of "education for leisure" —without having revised their notions of "leisure". As soon as this precious motive of snobbery evaporates, the zest has gone out of education; for it is not going to mean more money, or more power over others, or a better social position, or at least a steady and respectable job, few people are going to take the trouble to acquire education. For deteriorate it as you may, education is still going to demand a good deal of drudgery. And the majority of people are incapable of enjoying leisure—that is, unemployment plus an income and a status responsibility—in any but pretty simple form—such as balls propelled by hand, by foot, and by engines or tools of various types; in playing cards; or in watching dogs, horses or other men engage in feats of speed and skill.

The "crisis" of education for the whole world, whatever the nations or countries, according to the author, results from ______.

A.the misconception of the genuine role of education

B.the lack of a common goal in the education system

C.the lack of well-knitted social structures

D.the incompetence of educators and society governors

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