题目

在下图所示的各电路图中，能反映出L1、L2并联，开关S断开后L1仍能发光的是A. B. C. D. 答案：【答案】C【解析】A、由图可知开关S断开后L1仍能发光，但Ll、L2为串联电路，所以该选项不正确．B、由图可知Ll、L2为并联电路，开关S断开后L1不能发光，所以该选项不正确．C、由图可知Ll、L2为并联电路，开关S控制L2的通断，断开开关S后L1仍能发光，所以该选项正确．D、由图可知Ll、L2为并联电路，开Everyone has got two personalities — the one that is shown to the world and the other that is secret and real．You don’t show your secret personality when you’re awake because you can control your behavior，but when you’re asleep， your sleeping position shows the real you．In a normal night，of course，people frequently change their position．The important position is the one that you go to sleep in． If you go to sleep on your back，you’re a very open person．You normally trust people and you are easily influenced by fashion or new ideas．You don’t like to upset people，so you never express your real feelings．You’re quite shy and you aren’t very confident． If you sleep on your stomach，you are a rather secretive（不坦率的）person．You worry a lot and you’re always easily upset．You’re very stubborn（顽固的），but you aren’t very ambitious．You usually live for today not for tomorrow．This means that you enjoy having a good time． If you sleep curled up（卷曲），you are probably a very nervous person．You have a low opinion of yourself and so you’re often defensive．You’re shy and you don’t normally like meeting people．You prefer to be on your own．You’re easily hurt． If you sleep on your side，you have usually got a well-balanced personality．You know your strengths and weaknesses．You’re usually careful． You have a confident personality．You sometimes feel anxious，but you don’t often get depressed．You always say what you think even if it annoys people． 小题1:According to the writer，you naturally show your secret and real personality __________.A．only in a normal night B．only when you go to sleep C．only when you refuse to show yourself to the world D．only when you change sleeping position小题2:Which is NOT mentioned in the second paragraph about a person’s personality？A．He or she is always open with others．B．He or she always likes new ideas earlier than others．C．He or she is always easily upset．D．He or she tends to believe in others．小题3:Point out which sentence is used to show the personality of a person who is used to sleeping on his or her stomach？A．He or she is careful not to offend others．B．He or she doesn’t want to stick to his or her opinion．C．He or she can’t be successful in any business．D．He or she likes to bring others happiness．小题4:Maybe you don’t want to make friends with a person who sleeps curled up．Why？A．He or she would rather be alone than communicate with you．B．He or she is rarely ready to help you．C．He or she prefers staying at home to going out．D．He or she wouldn’t like to get help from you．小题5:It appears that the writer tends to think highly of the person who sleeps on one side because ________________．A．he or she always shows sympathy for people B．he or she is confident，but not stubborn C．he or she has more strengths than weaknesses D．he or she often considers annoying people