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A man once said how useless it was to put advertisements in the newspapers. “Last week,” said he, “my umbrella was stolen from a London church. As it was a present, I spent twice its worth in advertising ,but didn’t get it back ” “How did you write your advertisement ?”asked one of the listeners ,a merchant . “Here it is,” said the man ,taking out of his pocket a slip cut from a newspaper. The other man took it and read, “Lost from the City Church last Sunday evening a black silk umbrella .The gentleman who finds it will receive ten shillings on leaving it at No 10 Broad Street .” “Now ,”said the merchant, “I often advertise ,and find that it pays me well .But by the way in which an advertisement is expressed is of extreme importance .let us try your umbrella again ,and if it fails ,I will buy you a new one. ” The merchant then took a slip of paper out of his pocket and wrote :“If the man who was seen to take an umbrella from the City Church last Sunday evening doesn’t wish to get into trouble, he will return the umbrella to No. 10 Broad Street .He is well known .” This appeared in the paper ,and on the following morning ,the man was astonished when he opened the front door. In the doorway lay at least twelve umbrellas of all sizes and colors that had been thrown in and his own was among the number. Many of them had notes fastened to them saying that they had been taken by mistake, and begging the loser not to say anything about the matter 小题1:This is a story about ________. A.how a man lost and found his umbrella. B.how to make an effective advertisement. C.how to find lost things. D.how to put an advertisement in the newspaper. 小题2:“If it fails, I will buy you a new one ” suggested that _______. A.he was rich enough to afford an umbrella B.he was not sure he would get the umbrella back C.he was quite sure of his success . D.he was ready to help others . 小题3:The result of the first advertisement was that ________. A.the man got his umbrella back . B.the man wasted some money advertising . C.the man found his umbrella D.someone found his umbrella . 小题4:According to the first advertisement ,anyone who ___would receive ten shillings. A.left the umbrella in the City Church B.found the umbrella at No. 10 Broad Street C.gave the message to the man D.left the umbrella at No. 10 Broad Street
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【简答题】非限流式熔断器通常在短路电流( )电弧才熄灭,燃弧时间一般为几十毫秒。
【判断题】钱钟书的《围城》中,赵辛楣因为争夺唐晓芙的爱而与方鸿渐发生了矛盾。
A.
正确
B.
错误
【单选题】隐裂牙的主要症状是
A.
牙髓充血
B.
急性牙髓炎
C.
急性根尖炎
D.
慢性牙髓炎
E.
按隐裂部位及程度可能出现上述任一症状
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A.
正确
B.
错误
【单选题】熔断器串联在电路,通常做()。
A.
过载保护
B.
短路保护
C.
过电压保护
D.
失压保
【单选题】隐裂牙的主要症状是
A.
牙髓充血
B.
急性牙髓炎
C.
急性根尖炎
D.
慢性牙髓炎
E.
按隐裂部位及程度可能出现的症状
【单选题】制动时,三相异步交流电机处于发电机工况,旋转磁场的转速N( )转子的转速n
A.
大于
B.
小于
C.
等于
D.
不确定
【单选题】熔断器通常( )在电路中
A.
串联
B.
并联
C.
串联或者并联
D.
串联和并联
【单选题】在白炽灯的照明电路中,通常都需要安装熔断器开保护电路,规范安装要求熔断器安装在开关的( )。
A.
前面
B.
后面
C.
中间
D.
以上都可以
【多选题】用能量转移的观点分析事故致因的基本方法包括( )。
A.
确认某个系统内的所有能量源。
B.
确定可能遭受该能量伤害的人员及伤害的可能严重程序。
C.
确定控制该类能量不正常或不期望转移的方法。
D.
总结历史数据,预防能量的不正常转移。
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