Part A
Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D . Mark your answers on ANSWER SHEET 1.
It is a curious paradox that we think of the physical sciences as "hard", the social sciences as "soft", and the biological sciences as somewhere in between. This is interpreted to mean that our knowledge of physical systems is more certain than our knowledge of biological systems, and these in mm are more certain than our knowledge of social systems. In terms of our capacity to sample the relevant universes, however, and the probability that our images of these universes are at least approximately correct, one suspects that a reverse order is more reasonable. We are able to sample earth's social systems with some degree of confidence that we have a reasonable sample of the total universe being investigated. Our knowledge of social systems, therefore, while it is in many ways extremely inaccurate, is not likely to be seriously overturned by new discoveries. Even the folk knowledge in social systems on which ordinary life is based in earning, spending, organizing, marrying, taking part in political activities, fighting and so on, is not very dissimilar from the more sophisticated images of the social system derived from the social sciences, even though it is built upon the very imperfect samples of personal experience.
In contrast, our image of the astronomical universe, even of earth's geological history, can easily be subject to revolutionary changes as new data come in and new theories are worked out. If we define the "security" of our image of various parts of the total system as the probability of their suffering significant changes, we would reverse the order of hardness and see the social sciences as the most secure, the physical sciences as the least secure, and again the biological sciences as somewhere in between. Our image of the astronomical universe is the least secure of all simply because we observe such a fantastically small sample of it and its record-keeping is trivial as compared with the rich records of the social systems, or even the limited records of biological systems. Records of the astronomical universe, despite the fact that we see distant things as they were long ago, are limited in the extreme.
Even in regard to such a close neighbor as the moon, which we have actually visited, theories about its origin and history are extremely different, contradictory, and hard to choose among. Our knowledge of physical evolution is incomplete and highly insecure.
The text is mainly, about ______.
A.the relation between physical sciences and social sciences
B.the reasons of reversing traditional classification of physical and social science
C.social science is more available than physical science
D.classification of the physical sciences as "hard" and the social sciences as "soft"
第1题
按覆盖的地理范围进行分类,计算机网络可以分为3类()。
A.局域网、广域网与X.25
B.局域网、广域网与宽带网
C.局域网、广域网与ATM
D.局域网、广域网与城域网
第2题
按覆盖的地理范围进行分类,计算机网络可以分为3类()。
A.局域网、广域网与X.25
B.局域网、广域网与宽带网
C.局域网、广域网与ATM
D.局域网、广域网与城域网
第3题
按覆盖的地理范围进行分类,计算机网络可以分为3类()。
A.局域网、广域网与X.25
B.局域网、广域网与宽带网
C.局域网、广域网与ATM
D.局域网、广域网与城域网
第4题
按覆盖的地理范围进行分类,计算机网络可以分为三类______。
A.局域网、广域网与X.25网
B.局域网、广域网与宽带网
C.局域网、广域网与ATM网
D.局域网、广域网与城域网
第5题
按覆盖的地理范围进行分类,计算机网络可以分为三类_______。
A.局域网、广域网与X.25网
B.局域网、广域网与宽带网
C.局域网、广域网与ATM网
D.局域网、广域网与城域网
第6题
按覆盖的地理范围进行分类,计算机网络可以分为三类 ______。
A.局域网、广域网与X.25网
B.局域网、广域网与宽带网
C.局域网、广域网与ATM网
D.局域网、广域网与城域网
第8题
按覆盖的地理范围进行分类,计算机网络可以分为三类,它们是()。
A.局域网、广域网与X.25网
B.局域网、广域网与宽带网
C.局域网、广域网与ATM网
D.局域网、广域网与城域网
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