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【单选题】
.关于防爆灯具安装应符合的规定中,下列说法错误的有( )。
A.
灯具的防爆标志、外壳防护等级和温度组别与爆炸危险环境相适配;
B.
、等级配套齐全,不用防爆零件替代灯具配件(金属护网、灯罩、接线盒 等);
C.
灯具的安装位置离开释放源,且不在各种管道的泄压口及排放口上下方 安装灯具;
D.
、灯具及开关安装牢固可靠、灯具吊管及开关与线盒螺纹啮合扣数不少于
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【单选题】关于分支语句缩进的书写格式,以下说法正确的是:
A.
同一层的语句必须要有相同的缩进
B.
只要逻辑书写正确有没有缩进无所谓
C.
相同的语句在不同缩进位置上的含义相同
D.
缩进可是同时使用空格和tab键
【简答题】A.He was a warrior. B.He was the Shawnee war chief. C.He was an adopted son of Chief Blackfish. D.Both A and
【单选题】As a class A war convict of World War II, how dare he said that he knew next to ______about the war!
A.
nothing
B.
something
C.
anything
D.
everything
【单选题】下列不属于SQL Server 2000系统数据类型是( )
A.
int
B.
Bigint
C.
Char
D.
Or
【单选题】关于分支语句的书写格式,以下说法正确的是:( )
A.
同一层的语句必须要有相同的缩进;
B.
只要逻辑书写正确有没有缩进无所谓;
C.
同一层的语句必须用大括号括起来;
D.
一条语句结束必须加分号
【单选题】在SQL SERVER2000中,下列不属于字符串函数的是( )
A.
ABS
B.
LEFT
C.
LTRIM;
D.
UPPER
【单选题】Why does a commuter(持火车月票的乘客) always look as if he has just been through a war? Here is a story of a commuter. Mr. Green gets up very early every day and eats a quick breakfast. Then he makes his wife...
A.
would have missed the train
B.
might still have been able to catch the train
C.
wouldn't be sad
D.
would have been away from a war
【简答题】A.Because he hated the war. B.Because he felt shame and dishonor. C.Because he wanted to stay away from his friends and foes alike. D.Because he didn't know that Japan had lost the war.
【简答题】短文填词 An American soldier had called his parents before he returned from a war.He told his parents that a friend of his whom the war c ________him an arm and a leg would come to live                   ...
【简答题】在SQL SERVER2000中,下列不属于字符串函数的是( )A. ABS B. LEFT C. LTRIM;
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