试题与答案

小提琴发出悦耳的声音是因为琴弦在______,声音要靠______传播.

题型:填空题

题目:

小提琴发出悦耳的声音是因为琴弦在______,声音要靠______传播.

答案:

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下面是错误答案,用来干扰机器的。

(1)设直线l的方程为xa+yb=1(a>0,b>0),则11a2+1b2=1,∴1a2+1b2=1,∴ab≥2(当且仅当a=b=2时,取等号)∴|AB|=a2+b2≥2ab≥2(当且仅当a=b=2时,取等号)即|AB|最小为2,此时直线l的方程为x+y-2=0;(2)证...

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题型:阅读理解

One silly question I simply can’t stand is “How do you feel?” Usually the question is asked of a man in action — a man on the go, walking along the street, or busily working at his desk. So what do you expect him to say? He’ll probably say, “Fine, I’m all right,” but “you’ve put a bug in his ear” — maybe now he’s not sure. If you’re a good friend, you may have seen something in his face, or his walk, that he overlooked that morning. It starts him worrying a little. First thing you know, he looks in a mirror to see if everything is all right, while you go merrily on your way asking someone else, “How do you feel?”

Every question has its time and place. It’s perfectly acceptable, for instance, to asked “How do you feel?” if you’re visiting a close friend in the hospital. But if the fellow is walking on both legs, hurrying to catch a train, or sitting at his desk working, it’s no time to ask him that silly question.

When George Bernard Shaw, the famous writer of plays, was in his eighties, someone asked him, “How do you feel?” Shaw put him in his place. “When you reach my age,” Shaw said, “either you feel all right or you’re dead.”

26. The passage tells us that some greetings such as “How do you feel?” __________.

A. show one’s consideration for others     

B. are a good way to make friends

C. are proper to ask a man in action       

D. generally make one feel uneasy

27. The question “How do you feel?” seems to be correct and suitable when asked of _________________________.

A. a man working at his work                 B. a person having lost a close friend

C. a stranger who looks somewhat worried   D. a friend who is ill

28. The writer seems to feel that a busy man should _________________.

A. be praised for his efforts             

B. never be asked any questions

C. not be troubled                    

D. be discouraged from working so hard

29. “You’ve put a bug in his ear” means that you’ve _________________.

A. made him laugh merrily              

B. given him some kind of warning

C. shown much concern for him          

D. played a joke on him

30. George Bernard Shaw’s reply in the passage shows his __________.

A. cleverness         B. cheerfulness              C. power and skills        D. politeness                          

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题型:单项选择题 案例分析题

患者男,60岁。因进行性吞咽困难4个月就诊入院,经食管镜检查示食管中段6cm长之管腔狭窄,黏膜中断,病检报告为鳞癌Ⅱ级。体查锁骨上无肿大淋巴结,无声嘶。

该患者手术后1周体温升高达39℃以上,单纯退热药不易控制,脉搏心率加快伴胸痛、胸闷、呼吸困难。听诊术侧呼吸音减弱,叩诊局部浊音,胸腔穿刺可抽出气体及混浊酸臭的稀薄脓液。对该患者目前情况的正确判断是()

A.胸膜腔感染

B.反流性食管炎

C.吻合口瘘

D.吻合口狭窄

E.术后肺不张或肺部感染

F.肿瘤转移

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