A.of whichB.on whichC.in whichD.at which
A.of which
B.on which
C.in which
D.at which
A.of which
B.on which
C.in which
D.at which
Will you tell me which key is the one ______ the mailbox?
A.of
B.to
C.for
D.on
A.of which
B.when
C.where
D.by which
The tsunami (海啸)______over 160, 000 people were killed was a terrible disaster for human beings.
A.of that
B.among which
C.during that
D.in which
The author is convinced that the eyes are______.
A.of extreme importance in expressing feeling and exchanging ideas
B.something through which one can see a person's inner world
C.of considerable significance in making conversations interesting
D.something the value of which is largely a matter of long debate
Memory can be defined as the capacity to keep【B4】available for later use. It includes not only "remembering" thing like arithmetic or historical facts, but also any change in the way an animal typically behaves. Memory is【B5】when a rat gives up eating grain because he has sniffed something suspicious in the grain pile. Memory is also involved when a six year old child learns to swing a baseball bat.
Memory【B6】not only in humans and animals but also in some physical objects and machines. Computers, for example, contain devices for storing data for later use. It is interesting to compare the memory storage capacity of a computer【B7】that of a human being. The instant access memory of a large computer may hold up to 100 000 "words" ready for【B8】use. An average American teenager probably recognizes the meanings of about 100 000 words of English. However, this is but a fraction of the total【B9】of information which the teenager has stored. Consider, for example, the number of facts 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【B10】of words.
【B1】
A.of
B.to
C.for
D.on
He is an arbitrary leader and not very tolerant______criticism or contradiction.
A.of
B.with
C.on
D.to
His courage and confidence were based ______ knowledge.
A.of
B.to
C.on
D.for
We will agree to do what you require ______ him.
A.of
B.from
C.to
D.for