领导明确性程度很低，但群体成员满意感很高的沟通网络是()。

单项选择题X 纠错

A.链式
B.Y式
C.轮式
D.全方位式

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The biosphere is the name biologists give to the sort of skin on the surface of this planet that is inhabitable by living organisms. Most land creatures occupy only the interface between the atmosphere and the land;birds extend their range for a few hundred feet into the atmosphere;burrowing invertebrates(无脊椎动物)such as earthworms may reach a few yards into the soil but rarely penetrate farther unless.it has been recently disturbed by men. Fish cover a wider range,from just beneath the surface of the sea to those depths of greater than a mile inhabited by specialized creatures. Fungi(真菌)and bacteria are plentiful in the atmosphere to a height of about half a mile,blown there by winds from the lower air. Balloon exploration of the stratosphere(同温层)as long ago as 1936 indicated that moulds and bacteria could be found at heights of several miles,recently the USAs National Aeronautics and Space Administration has detected them,in decreasing numbers,at heights up to eighteen miles. They arc pretty sparse at such levels, about one for every two thousand cubic feet, compared with 50 to 100 per cubic foot at two to six miles(the usual altitude of jet aircraft),and they are almost certainly in an inactive state. Marine bacteria have been detected at the bottom of the deep Pacific trench,sometimes as deep as seven miles; they are certainly not inactive. Living microbes have also been obtained on land from cores of rock drilled(while prospecting for oil)at depths of as much as 1,200 feet. Thus we can say, disregarding the exploits of astronauts, that the biosphere has a maximum thickness of about twenty-five miles. Active living processes occur only within a compass of about seven miles,in the sea, on land and in the lower atmosphere, but the majority of living creatures live within a zone of a hundred feet or so. If this planet were sealed down to the size of an orange,the biosphere,at its extreme width,would occupy the thickness of the orange-colored skin,excluding the pith. In this tiny zone of our planet takes place the multitude of chemical and biological activities that we call life. The way in which living creatures interact with each other, depend on each other or compete with each other, has fascinated thinkers since the beginning of recorded history. Living things exist in a fine balance which is often taken for granted, from a practical point of view, things could not be otherwise. Yet it is a source of continual amazement to scientists because of its intricacy and delicacy. The balance of nature is obvious most often when it is disturbed. Yet even here it can seem remarkable how quickly it readjusts itself to a new balance after a disturbance. The science of ecology—the study of the interaction of organisms with their environment—has grown up to deal with the minutiae of the balance of nature.
According to the passage,the'biosphere'is the layer on the earths surface_____.
A．where the atmosphere meets the sea
B．in which birds, fish and animals would die
C．in which plant and animal life can exist
D．in which earthworms and other invertebrates can live此题为多项选择题。

A.it
B.
According
C.
A．where
D.in
E.in
F.in

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Many instructors believe that an informal, relaxed classroom environment is【C1】______to learning and innovation. It is not uncommon for students to have【C2】______and friendly relationships with their professors. The【C3】______professor is not necessarily a poor one and is still【C4】______by students. Although students may be in a(n) 【C5】______position,some professors treat them as【C6】______. However, no mat-ter how【C7】______professors would like to be,they still are in a position of【C8】______. Professors may【C9】______social relationships with students outside of the classroom, but in the classroom they【C10】______the instructors role. A professor may have coffee one day with students【C11】______the next day expect them to【C12】______a deadline for the【C13】______of a paper or to be pre-pared【C14】______a discussion or an exam. The professor may give【C15】______attention outside of class to a student in【C16】______of help but probably will not treat him or her differently when it【C17】______evaluating school work. Professors have several roles【C18】______students;they may be counselors and friends as well as teachers. Students must 【C19】______that when a teacher s role changes, they must appropriately【C20】______their behavior. and attitudes.
【C1】
A．instructive
B．conducive
C．constructive
D．healthy

A.
【C1】
A．instructive
B．conducive
C．constructive
D．healthy

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单项选择题

传播沟通不仅包括信息()、()、()分享一系列过程，还包括信息的收集与处理，并且综合地运用各种传播方式和传播媒介。

A.传递、传播、接受
B.交流、传输、传达
C.传递、接受、交流
D.传达、接受、交流

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单项选择题

根据一定的目的，运用已知信息，产生出某种新颖、独特、有社会或个人价值的产品的能力称为()。

A.回忆
B.思维
C.想象
D.创造力

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单项选择题

在以下关于ieee802.5标准的讨论中，哪个论述是正确的()
A.TokenRing环中允许有多个令牌
B.令牌环网中结点连接到物理的环形通道中。
C.令牌总线是沿着物理环两个方向传送
D.令牌环控制方式具有与令牌总线方式相似的特点，如环中结点访问延迟确定，适用于重复载环境，支持优先级服务

A.5标准的讨论中，哪个论述是正确的()
A.TokenRing环中允许有多个令牌
B.令牌环网中结点连接到物理的环形通道中。
C.令牌总线是沿着物理环两个方向传送
D.令牌环控制方式具有与令牌总线方式相似的特点，如环中结点访问延迟确定，适用于重复载环境，支持优先级服务

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单项选择题

下列不属于会计要素的是()。

A.所有者权益
B.负债
C.成本
D.资产

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A World Without Books Or Music If books had never been discovered, man would have found some other way of recording his communication. But then,for our consideration,we should include as books everything that is a written record. This would include tablets,papyrus and anything else—including computer diskettes. In the case of music.it would be impossible to think that man can live without it. Looking at primitive cultures, it appears that music is actually a part of the human psyche. When two things are knocked together, music is produced. So for the sake of our discussion.it is intended to restrict the meaning of music to the popularly accepted concept. Music is the pleasing combination of sounds that we like to listen to. Though it is difficult to,we can pretend that these things never existed. In this case we would not miss them today. To compare with recent inventions, let us look at radio and television Though we cannot think of life without them today, this is so only from comparatively recent times. There are many of us living today who had seen a time when there was no television. They will tell us that life was not that much different. The same is probably true of radio. But books are a different thing because they, or something akin to them,began thousands of years ago. In the case of music.it goes back even further-perhaps to millions of years, we may be able to imagine a world which never saw books,because books are a human invention. However, in the case of music this does not seem possible. Pleasing sounds are all around us,like the singing of the birds and the whistling of the wind. Music just seems to be inborn in us and in the world around us. If books did not exist,the world will be a poorer place indeed. Great philosophies like Platos would become unknown and all the pleasures and lessons we could get from them will be lost forever. Then there is literature like the works of the great masters like Shakespeare,Dickens and Jane Austen. What a so sombre,miserable world it will be without the pleasures of reading. Since there are so many other things which depend on reading—like plays,songs and movies—we can expect them to disappear also. It would be a dark and unsatisfying world where knowledge is not propagated;where there are no books to derive pleasure from. In the case of music,without it the world will be bleak and cold indeed. It would be a terrible world with no cheery tunes ,no songs to sing and no great music to lose ourselves in. A world which does not listen to the music of the great masters like Chopin and Beethoven would be a very sorry world. There will not be so many smiles on faces anymore. When we lose music,an expression of a deep part of ourselves—from the soul—is lost. With music,connected activities like dancing will be lost too. A world without music and dancing will bring us back to the Stone Age. Unlike radio,television,telephones and computers,reading and music are not mere conveniences that we can live without. Reading is crucial for self-expression and for passing on records and knowledge to future generations. Music is part of our very soul. A world without these will not be the world as we know it. In fact,many of us would not want to live in such a world.
Music is part of the human psyche because____.
A．it is part of primitive culture
B．it is something we like to listen to
C．it always strikes a chord with us
D．it has been produced since ancient times此题为多项选择题。

A.it
B.it
C.it
D.
Music
E.
A．it
F.it
G.it
H.it

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单项选择题

OSI参考模型中具有流量控制的层次为()

A.物理层
B.链路层
C.网络层
D.B和C

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单项选择题

采用分层法计算竖向荷载作用下框架内力,以下不正确的选项是( )。
A. 底层柱的线刚度不折减
B. 忽略框架的侧移
C. 将各层柱的刚度均乘以修正系数 0 .9
D. 每层梁上荷载对其它各层梁、柱内力的影响忽略不计

A.9
D.

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单项选择题

甲公司投资并委托乙集装箱公司经营一家码头。作为码头的实际投资人，甲公司指示乙公司将码头内控制车辆运行的交通标志灯安装工程发包给丙工程公司安装。丙工程公司又找到临时包工头张某负责安装交通灯。包工头又将安装工作交由同村村民赵某施工。在交通灯安装过程中，赵某不小心触电摔成三级伤残。问题：谁应该赔偿赵某?()

A.乙公司
B.甲公司
C.张某
D.丙公司

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