皮皮学,免费搜题
登录
搜题
【多选题】
关于DGT-801型发变组保护装置中发电机误上电保护说法正确的有()。
A.
利用断路器辅助接点、定子电流、低频低压判据来判断发电机是正常并网或误上电;
B.
利用断路器辅助接点、定子电压、低频低压判据来判断发电机是正常并网或误上电;
C.
发电机并网后该保护自动退出;
D.
发电机解列后该保护自动投运运行。
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】下列哪项装饰装修材料中不属于室内环境污染物苯的释放来源?
A.
木器涂料
B.
天然砂
C.
胶黏剂
D.
有机稀释剂
【多选题】Read the sentences. Then reorder the events. The History of Soccer Without a doubt, soccer is the most popular sport in the world. Around 250 million people from more than 200 countries regularly p...
A.
The first World Cup was played in Uruguay.
B.
Large disorganized games in the streets were common in Europe.
C.
Scotland and England played the first international soccer game.
D.
Groups in England formed the Football Association.
E.
The FIFA had its first meeting.
【判断题】ONU未经过分光器可以直连PON口。
A.
正确
B.
错误
【单选题】下列各项中,不属于资本资产定价模型局限性的是( )。
A.
某些资产或企业的β值难以估计
B.
CAPM是建立在一系列假设之上的,其中一些假设与实际情况有较大偏差,使得CAPM的有效性受到质疑。
C.
由于经济环境的不确定性和不断变化,使得依据历史数据估算出来的β值对未来的指导作用要打折扣
D.
市场整体对风险的厌恶程度难以估计
【单选题】Which of the following is the most economical payment for both buyers and sellers?
A.
D/A
B.
L/C
C.
T/T
D.
D/P
【简答题】Th e belief in the of the individual i s p r obably the most basic and most s t rongly held of all Am er ican beliefs. The most important thing to understand Americans is p rob ably their devo...
【判断题】作为企业资产,必然是企业拥有其所有权的,会导致经济利益流入企业的经济资源 ( )
A.
正确
B.
错误
【单选题】Which of the following groups is most likely to be benefitted when a country engages in free trade? a. A ll the domestic producers of the countr y b. T he manufacturers of exportable goods c. The p ro...
A.
B.
C.
D.
D
【单选题】______________ is the most risky way of collection for the seller
A.
D/P at sight
B.
T/T
C.
D/A
D.
L/C
【多选题】资本资产定价模型存在一些局限性( )。
A.
是对现实中风险和收益的关系的最确切的表述
B.
资本资产模型建立在一系列假设之上,但这些假设与实际情况有一定的偏差。
C.
某些资产的贝塔值难以估计
D.
依据历史资料计算出来的贝塔值对未来的指导作用有限
相关题目: