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| What is your favorite color？ Do you like yellow, orange, red？71. Do you prefer grays and blues？ Then you are probably quiet, shy, and you would rather follow than lead. You tend to be pessimist. At least, this is what psychologists tell us, and they should know, because they have been seriously studying the meaning of color preference, as well as the effect that colors have on human beings.72. If you happen to love brown, you did so, as soon as you opened your eyes, or at least as soon as you could see clearly. 73. A yellow room makes most people feel more cheerful and more relaxed than a dark green one; and a red dress brings warmth and cheer to the saddest winter day.74. A black bridge over the Thames River, near London, used to be the scene of more suicides（自杀）than any other bridge in the area ----until it was repainted green . The number of suicide attempts immediately fell sharply. Perhaps it would have fallen even more if the bridge had been done in pink or baby blue. 75 .It is an established fact that factory workers work better, harder, and have fewer accidents when their machines are painted orange rather than black or grey.
F. Life is like a picture or a poem, full of different colors. G. Colors do influence our moods---there is no doubt about it. |
Color does influence our moods (情绪)― there is no doubt about it.A yellow room makes most people feel more cheerful and more relaxed than a dark green one; and a red dress bri ngs warmth and cheer to the saddest winter day.On the other hand, black is depressing.A black bridge over the Thames River, near London, used to be the scene of more suicides than any other bridge in the area — until it was repainted green.The number of suicide attempts immediately fell sharply; perhaps it would have fallen even more if the bridge had been done in pink or baby blue.
Light and bright colors make people not only happier but also more active.It is an established fact that factory workers work better, harder, and have fewer accidents when their machines are painted orange rather than black or gray.
1.The author regards the psychologists'findings as ().
A.groundless
B.doubtful
C.reasonable
D.unusual
2.According to the psycholog ists, a person’s color preference ().
A.is formed as he grows up
B.is acquired through experience
C.is decided by his surroundings
D.is possessed from birth
3.It can be concluded from the passage that bright color lovers tend to be ().
A.quiet
B.active
C.depressive
D.pessimistic
4.The example of the bridge is used to illustrate that ().
A.people tend to kill themselves by jumping from bridges
B.color can affect people’s moods to a great degree
C.the bridge should have been repainted earlier
D.certain color can kill people sometimes
5.The notion that machines painted orange can reduce the risk of accidents ().
A.is a well-accepted fact
B.remains to be proved
C.is an illusion of workers
D.is a good wish of scientists
Suppose the joint pdf of random variables
and
is
Then
and
are independent if and only if
.
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