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【简答题】
10 truly awesome things. Example Reasons T he wheel If you had to ( 1 ) ________ everything on your back, it would be easier to ( 2 ) _______ this home. T he Great Pyramids The Great Pyramids were the ( 3 ) ____ ( 4 ) _____ structure in the world for 4000 years. Pharaoh had his ( 5 ) ______ move millions of blocks to erect a big freaking headstone. T he Grand Canyon It’s almost ( 6 ) ________ years old. P hotography Louis Daguerre invented photography in ( 7 ) ______ . Now You can ( 8 ) _____ your smartphone and take a shot. It’s easier than ( 9 ) _____ the image to copper plates with iodized silver. D-Day The Allied invasion of Normandy is the largest ( 10 ) _______ invasion in the world history. H oneybee If the ( 11 ) _______ aren’t pollinated, we can’t grow food, and we are all going to ( 12 ) _______ . Landing on the moon One small ( 13 ) _____ for a man, one ( 14 ) _________ leap for awesome. Woodstock Rolling Stone Magazine said this changed the history of ( 15 ) ___ . Jimi Hendrix's version of "The Star-Spangled Banner" was the most ( 16 ) __________ . S harks Sharks are at the top of the ( 17 ) ________ . They have ( 18 ) ________ rows of teeth that grow in their jaw, and move forward like a ( 19 ) __________ . T he Internet It was born in 1982, and instantly took over ( 20 ) ________ .
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【判断题】在施工现场专用的 380/220V 三相四线制的电力线路中必须采用 TN-S 接零保护系统。
A.
正确
B.
错误
【单选题】Both ads promised to provide ______.
A.
insurance
B.
low price
C.
free estimates
D.
free designing
【单选题】The beautiful coat ______ by her last month.
A.
is designed
B.
is designing
C.
was designed
D.
was designing
【判断题】在施工现场专用的380/220V三相四线制的电力线路中必须采用TN-S接零保护系统。 ( )
A.
正确
B.
错误
【单选题】下列属于厨房安全生产应有的规章制度是 ( )。
A.
安全生产责任制
B.
电气设备绝缘制
C.
技能培训制度
D.
安全加工制度
【单选题】外部端子实现电动机的正反转的端子是( ),对应的参数设置为( )
A.
端子5、6,P0701=10、P0702=11
B.
端子5、6,P0701=1、P0702=2
C.
端子7、8,P0701=1、P0702=2
D.
端子7、8,P0701=1、P0702=2
【简答题】一、十进制转换为非十进制 l ( 49 ) 10 = ( ) 2 l ( 635 ) 10 = ( ) 8 l ( 1325 ) 10 = ( ) 16 二、非十进制转换为十进制 l ( 11011011 ) 2 = ( ) 10 l ( 2157 ) 8 = ( ) 10 l ( 2B3C ) 16 = ( ) 10 三、二进制与八、十六进制互转 l ( 11001101101001 ) 2 =...
【简答题】管理信息系统的结构有几个视图?
【单选题】外部端子实现电动机的正反转的端子是(),对应的参数设置为()
A.
端子 5 、 6 , P0701=10 、 P0702=11
B.
端子 5 、 6 , P0701=1 、 P0702=2
C.
端子 7 、 8 , P0701=1 、 P0702=2
D.
端子 7 、 8 , P0701=10 、 P0702=11
【简答题】在施工现场用电工程专用的电源中性点直接接地的220/380V三相四线制低压电力系统中,必须采用TN-S接零保护系统,严禁采用()接零保护系统。
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