建造师在施工过程中应遵守用电安全规定,不允许()。A.改变用电类别 B.减少合同约定

题型:单项选择题

问题:

建造师在施工过程中应遵守用电安全规定,不允许()。

A.改变用电类别

B.减少合同约定的容量用电

C.减少计划分配的用电指标

D.擅自使用已经在供电企业办理暂停使用手续的电力设备

考点:机电工程2H320090机电工程施工安全管理2H320090机电工程施工安全管理题库
题型:单项选择题
完形填空。
     Once when I was a teenager, my father and I were standing in line to buy tickets for the circus (马戏团).
This is about the family standing ahead of us.
     The family had eight children. Their clothes were not expensive but  1 .
     The children were well behaved. They stood in line, two by two behind their parents, holding hands.
They were excitedly talking about the clowns (小丑), elephants and other acts they would see that night.
You could  2  that they had never been to the circus before.
     The ticket lady asked the father how many tickets he wanted. He  3  replied, "I want eight children's tickets
and two adult tickets please, so I can take my  4  to the circus."
     The ticket lady quoted (报) the price. The man's wife let go of his hand. The man's lip started to quiver
(颤抖).He leaned (靠) toward  5  and asked again, "How much did you say?" The ticket lady quoted the price
again. The man didn't have  6   money. How was he supposed to tum and tell his eight kids that he couldn't
take them to the circus?
      My dad put his hand into his pocket, pulled out a $20 bill and  7  it on the ground. (And we weren't rich!)
Then he  8  down, picked up the bill, tapped the man on the shoulder and said, ''Excuse me, sir, this  9  out of
your pocket."
     The man knew  10  was going on. He looked into my dad's eyes, held my dad's hand in his, and took the
$20 bill. With a tear in his eye, he replied,"Thank you, thank you, sir. This really  11  a lot to me and my
family."
      My father and I went back to our car and drove home. We didn't get to see the circus that night, but we
didn't  12 .
( )1. A. clean   
( )2. A. find    
( )3. A. suddenly
( )4. A. wife    
( )5. A. her     
( )6. A. much    
( )7. A. missed  
( )8. A. got     
( )9. A. moved   
( )10. A. what   
( )11. A. takes  
( )12. A. worry  
B. large    
B. agree    
B. proudly  
B. children 
B. him      
B. any      
B. lost     
B. reached  
B. broke    
B. how      
B. costs    
B. care     
C. thick
C. tell 
C. safely
C. team 
C. them 
C. enough
C. passed
C. went 
C. fell 
C. when 
C. owns 
C. know 
D. warm  
D. decide
D. quietly
D. family
D. us    
D. some  
D. dropped
D. looked
D. took  
D. who   
D. means 
D. show  
题型:单项选择题

在日常生活中和农业生产中,下列物质用途由化学性质决定的是[ ]

A.用活性炭除去冰箱内的异味

B.氮气用作保护气

C.用金属铜制作电线

D.干冰用于人工降雨

题型:单项选择题

在某BaCl2溶液中通入SO2气体,未见沉淀生成;若先通入SO2气体,再通入另一种气体,则可看到沉淀生成;这种气体不可能是

A.Cl2

B.NH3

C.HCl

D.SO3(气体)

题型:单项选择题

斑蝥内服用量为()g.

A.[0.3-0.6]

B.[0.03-0.06]

C.[0.1-0.5]

D.[0.5-1]

题型:单项选择题

试说明铸铁的分类以及灰口铸铁与球墨铸铁的性质与牌号的含义。

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