某企业电网先期装有4台发电机(2×30MW+2×42MW),后期扩建2台300MW机

题型:单项选择题

问题:

某企业电网先期装有4台发电机(2×30MW+2×42MW),后期扩建2台300MW机组,通过2回35kV线路与主网相联,主设备参数如表所列,该企业电网的电气主接线如图所示。

本企业电网110kV母线接有轧钢类钢铁负荷,负序电流为68A,若110kV母线三相短路容量为1282MVA,请计算该母线负序电压不平衡度为下列哪项数值?()

A.0.61%

B.1.06%

C.2%

D.6.10%

考点:注册电气工程师发输变电专业注册电气工程师发输变电专业2013年(下)专业案例真题(案例题(选择题))
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学习第二次世界大战后,教师让同学们讨论反法西斯战争胜利的根本原因,讨论取得的一致意见是(    )

A.世界反法西斯国家的团结战斗和世界人民的支持

B.英、美两国的联盟

C.苏美两国的中流砥柱作用

D.美国使用原子弹

题型:单项选择题

西汉的建立者是[ ]

A.陈胜

B.吴广

C.刘邦

D.刘彻

题型:单项选择题

记忆是一个复杂的心理过程,它包括()、()、()、再认等几个基本环节。

题型:单项选择题
短文填词。
阅读下面短文,根据以下提示:
1)汉语提示,
2)首字母提示,
3)语境提示,在每个空格内填入一个适当的英语单词;
并将该词完整地写在右边相对应的横线上.所填单词要求意义准确,拼写正确.
Sometimes you can learn more about what a person is trying to
say just by watching instead of l    . You might be talking to someone   
about an idea you have. He might say that he's interested     your idea.  
Just watch his face. Is he l      at you or are his eyes moving around,    
just tired of w    you're saying ? It's important to watch other's body     
language carefully because it provides a lot of useful       (信息).        
Sometimes a person will be speaking too q    or use words that you      
don't understand. If you pay attention to the     (信号)he is giving,      
maybe you can still follow him, even   you're not sure of the meaning     
of the words. This is especially    (有必要的)when watching TV or      
in other situations       you can't ask the speaker to slow down.        
1.______           
2.______           
3.______          
4.______          
5.______             
6.______          
7.______           
8.______            
9.______            
10.______           
题型:单项选择题

口服铁剂的护理,健康教育错误的是()

A.若为水剂或冲剂,用吸管吸

B.空腹时服用

C.口服剂使大便呈黑色

D.禁饮浓茶

E.与维生素C同服

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