It is difficult to imagine what life would be like without memory. The meani

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问题    It is difficult to imagine what life would be like without memory. The meanings of thousands of everyday【S1】______, the bases for the decisions we make, and the roots of our habits and skills are to be found in our past experiences, which are brought into the present by memory.
Memory can be【S2】______as the capacity to keep information【S3】______for later use. It includes not only "remembering" things like arithmetic or historic facts, but also involves any change in the way an animal【S4】______behaves. Memory is involved when a rat gives up eating grain because he has sniffed something【S5】______in the grain pile. Memory is also involved when a six-year old child learns to【S6】______a baseball bat.
Memory exists not only in humans and animals but also in some physical objects and machines. Computers, for example, contain【S7】______for storing data for later use. It is interesting to compare the memory-storage capacity of a computer with that of a human being. The【S8】______memory of a large computer may hold up to 100,000 "words" ready for instant use. An average U.S. teenager probably recognizes the meaning of about 100,000 words of English. However, this is but a【S9】______of the total amount of information which the teenager has stored. Consider, for example, the number of faces and places that the teenager can recognize on sight.
The use of words is the basis of the advanced problem-solving intelligence of human beings. A large part of a person’s memory is in terms of words and【S10】______of words.

A) evolves          B) fraction          C) perceptions       D) confined
E) typically       F) swing             G) minimum             H) defined
I) suspicious       J) retrieve          K) merges             L) available
M) devices          N) combinations       O) instant-access [br] 【S6】

选项

答案 F

解析

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