出自:乐山师范学院制药工程
属于主量子数n= 3 的一个电子的四个量子数n,l,m,ms 取值正确的是 ( )
A. 3,2,1,0
B. 3,2, -1,
C. 3,3,1,
D. 3,1, 2,
Decide on the best choice and mark the
corresponding letter on the answer sheet. Passage A What is your favourite colour? Do you like yellow, orange or red? If you do, you must be an
optimist, a leader, an active person who enjoys life, people and excitement. Do you prefer greys and blues? Then you are probably quiet, shy, and you
would rather follow than lead. You tend to be a pessimist. At least, this is what psychologists tell us, and they should know, because they have been
seriously studying the meaning of colours preference, as well as the effect that colours have on human beings. They tell us, among other facts, that we
do not choose our favourite colour as we grow up---we are born with our preference. 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. Colours do influence our moods---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 brings 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 colours make people not only happier but 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 grey. 56. “You would rather follow than lead”
means（）.
A. you don’t like to follow others
B. you would be a member rather than a leader
C. you would be afraid of following others
D. you would like to be a leader rather than a follower