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The media ha ve a great effect on us in our daily life. Believe it or not. I will tell you a true story of my own. Last evening I was watching the evening news on television. The news was about a prize for scientific 1 ; I forgot what it was. The announcer, whose name was Ralph Story, said something that caught my 2 “All great discoveries,” he said, “are made by people between the ages of twenty-five and thirty.” 3 a little over thirty myself, I wanted to disagree with him. 4 wants to think that he is past the age of making any discovery. The next day I happened to be in the public library and spent several hours looking up the 5 of famous people and their discoveries. Ralph was right. First I looked at some of the 6 discoveries. One of the earliest discoveries, the famous experiment that proved that bodies of different 7 fall at the same speed, was made by Galileo when he was 26. Madam Curie started her research that 8 to a Nobel Prize when she was 28. Einstein was 26 when he published his world-changing theory of relativity. Well, 9 of that. Yet I 10 ,if those “best years” were true in other 11 . How about the field of 12 ? Surely it needed the wisdom of age to make a good leader. Perhaps it 13 , but look when these people 14 their career. Winston Churchill was elected to the House of Commons at the age of 26. Abraham Lincoln 15 the life of a country lawyer and was elected to the government at what age? Twenty-six. But why 16 the best years come after thirty? After thirty, I 17 , most people do not want to take risks or try 18 ways. Then I thought of people like Shakespeare and Picasso. The former was writing wonderful works at the ripe age of fifty. while the latter was 19 trying new ways of painting when he was ninety! Perhaps there is still 20 for me.
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【判断题】大于半圆的圆弧或者整圆只能能标注直径尺寸,不能标注半径尺寸。
A.
正确
B.
错误
【简答题】支气管哮喘典型表现为____。
【单选题】Java系统标准输出对象System.out使用的输出流是
A.
PrintStream
B.
PrintWriter
C.
DataOutputStream
D.
FileReader
【多选题】关于触发器及锁存器说法正确的是( )
A.
都具有保持
B.
锁存器保持在前期锁存的输入值
C.
锁存器电平锁存,使能无效时,锁存输入值并保持;有效时,输出随输入变化
【单选题】列车运行速度为120
A.
25KN
B.
13KN
C.
15KN
D.
10KN
【单选题】病理条件下,心尖搏动减弱的原因为
A.
甲亢
B.
贫血
C.
心肌炎
D.
发热
E.
左心室肥大
【单选题】列车运行速度为V≤120 km/h时,接触线张力为 ()KN
A.
25
B.
13
C.
15
D.
10
【多选题】关于触发器及锁存器说法正确的是( )
A.
都具有保持
B.
锁存器保持在前期锁存的输入值
C.
锁存器电平锁存,使能无效时,锁存输入值并保持;有效时,输出随输入变化
【简答题】轴是机器最重要和主要的零件,其功用主要有两点,一是 ,
【单选题】头皮血肿最常见的受伤原因
A.
钝器伤
B.
锐器伤
C.
火器伤
D.
机械牵拉伤
E.
. 对冲伤
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