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【简答题】
A car drew up outside the Swan Hotel and a young man got out.Pausing only for a moment to see that he had come to the right place,he went into the hotel and rang the bell on the counter of the bar. Mrs.Crump,the landlady,who was busy in the kitchen at the time,hurried out,wiping her hands.The young man raised his hat. “Excuse me,”he said.“I’m looking for my uncle,Mr.White.I believe he is staying here.” “He was staying here.”Mrs.Crump corrected him.“But I’m afraid that he went back to London yesterday.” “Oh,dear,”said the young man,looking disappointed.“I understood that he was going to stay here until the end of the month.At least that is what his servant told me when I rang up his house.” “Quite right,”said Mrs,Cramp.“He planned to stay here the whole of July,as he always does. But yesterday he got a telegram to say that his relative was ill.So he caught the train back to London immediately.” “I wish he had let me know, ”The young man said.“I wrote him a letter saying that I was coming.I’ve had all this trouble for nothing.Well,since he isn’t here,there’s no point in waiting.” He thanked Mrs.Grump and went out.Mrs.Grump went to the window and watched him drive off.When his car was out of sight,she called out:“You can come out now, Mr.White. He’s gone.” Mr.White came out of the kitchen,where he had been waiting. “Many thanks,Mrs.Grump,”he said,laughing,“you did that very well.These nephews of mine never gave me any peace.That young man is the worst of them all.As you see,when he needs money, he even follows me into the country.Well,perhaps next time he won’t warn me by writing a letter!” 小题1:This story is about a man . A.who was very much loved by his nephews B.whose nephew went to visit him at the hotel C.who was not willing to meet his nephew D.whose nephew is always asking him for help 小题2:When his nephew came to the hotel,Mr.White . A.took the train back to London B.left to visit a sick relative C.went to pick up a telegram D.hid himself in the kitchen 小题3:Mr. White didn’t like his nephews because . A.they always follow him around B.they frequently disturb their relatives C.they won’t write to him often D.they usually visit him in hotels
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举一反三
【单选题】下列不属于集成运放电路非线性应用的是
A.
加法运算电路
B.
滞回比较器
C.
非过零比较器
D.
过零比较器
【判断题】公元前1世纪,希腊文明汇入罗马文明中。()
A.
正确
B.
错误
【简答题】小功率的直流稳压电源由电源变压器 、 、 和 四部分组成。
【单选题】 下列哪一项是社会评价一个人的人生价值的普遍标准
A.
品德修养
B.
拥有的财富
C.
获得的职称或学位
D.
个人对社会和他人的贡献
【判断题】对建筑物上的监测点进行布设。同时,平时还应对建筑物进行目测巡检,发现异常情况时,一方面跟踪监测,一方面分析原因 , 及时上报 , 以便及时采取有效措施。
A.
正确
B.
错误
【多选题】集成运放电路非线性应用的条件是( )
A.
工作在高阻状态
B.
加适当的负反馈
C.
工作在放大状态
D.
工作在开环状态
E.
加正反馈
【判断题】UPS电源装置中,逆变器的主要功能是把由市电整流滤波后得到的直流电或来自蓄电池的直流电,重新变换成频率非常稳定,输出电压受负载影响很小、波形畸变率满足负载要求的交流电。
A.
正确
B.
错误
【多选题】3~82.集成运放电路的线性应用是( )。
A.
加法运算电路
B.
减法运算电路
C.
积分电路
D.
过零比较器
E.
射机输出器
【多选题】集成运放电路的线性应用是( )
A.
加法运算电路
B.
减法运算电路
C.
积分电路
D.
过零比较器
E.
射机输出器
【单选题】不属于集成运放电路非线性应用的是( )。
A.
加法运算电路
B.
滞回比较器
C.
非过零比较器
D.
过零比较器
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