题目内容
如下图所示，3com和Cisco公司的交换机相互连接，在两台交换机之间需传输ULANID为1、10、20和30的4个VLAN信息，Catalyst 3548交换机VLAN Trunk的正确配置是
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下图是网络地址转换NAT的一个示例。
图中①和②是转换前后的地址，它们依次应为
下图是主机A发送的数据包通过路由器转发到主机B的过程示意图。
根据图中给出的信息，数据包2的目的IP地址和目的MAC地址分别是
From the text we learn that Christopher Lash is most probably ______.
Part A
Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points)
What our society suffers from most today is the absence of consensus about what it and life in it ought to be; such consensus cannot be gained from society's present stage, or from fantasies about what it ought to be. For that the present is too close and too diversified, and the future too uncertain, to make believable claims about it. A consensus in the present hence can be achieved only through a shared understanding of the past, as Homer's epics informed those who lived centuries later what it meant to be Greek, and by what images and ideals they were to live their lives and organize their societies.
Most societies derive consensus from a long history, a language all their own, a common religion, common ancestry. The myths by which they live are based on all of these. But the United States is a country of immigrants, coming from a great variety of nations. Lately, it has been emphasized that an asocial, narcissistic personality has become characteristic of Americans, and that it is this type of personality that makes for the lack of well-being, because it prevents us from achieving consensus that would counteract a tendency to withdraw into private worlds. In this study of narcissism, Christopher Lash says that modern man, "tortured by self-consciousness, turns to new therapies not to free himself of his personal worries but to find meaning and purpose in life, to find something to live for". There is widespread distress because national morale has declined, and we have lost an earlier sense of national vision and purpose.
Contrary to rigid religions or political beliefs, as are found in totalitarian societies, our culture is one of the great individual differences, at least in principle and in theory; but this leads to disunity, even chaos. Americans believe in the value of diversity, but just because ours is a society based on individual diversity, it needs consensus about some dominating ideas more than societies based on uniform. origin of their citizens. Hence, if we are to have consensus, it must be based on a myth—a vision about a common experience, a conquest that made us Americans, as the myth about the conquest of Troy formed the Greeks. Only a common myth can offer relief from the fear that life is without meaning or purpose. Myths permit us to examine our place in the world by comparing it to a shared idea. Myths are shared fantasies that form. the tie that binds the individual to other members of his group. Such myths help to ward off feelings of isolations, guilt, anxiety, and purposelessness—in short, they combat isolation and the breakdown of social standards and values.
This text is mainly intended to ______.
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