皮皮学，免费搜题
登录
logo - 刷刷题
搜题
【简答题】
定子绕组串电阻降压起动是指在三相交流异步电动机起动时,把电阻 在电动机的 与电源之间,通过电阻的分压作用来 定子绕组上的起动电压。当电动机起动后,待其转速达到一定值时,再将电阻 ,使电动机在额定电压下正常运行。 启动电阻 R一般采用ZX1、ZX2系列 电阻。铸铁电阻能够通过较大电流,功率大。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案：
举一反三
【单选题】Micro C o acquired 90% of the $100,000ordinary share capital of Minnie Co for $300,000 on 1 January 2012 when the retained earning of Minnie Co were $156,000.At the date of acquisition the fair value ...
A.
$119,000
B.
$99,000
C.
$139,000
D.
$24,000
查看完整题目与答案
【简答题】If he happens to meet another person carrying a limited amount of water, he will not rob the person of the water, as he is restrained by the ( ) , consisting of his conscience and ego-ideal.
查看完整题目与答案
【判断题】图腾与旗帜，往往有着一脉相承的关系。()
A.
正确
B.
错误
查看完整题目与答案
【多选题】县政府向所属乡镇发文，可适用的文种有( )。
A.
决定、通报
B.
通知、意见
C.
批复、会议纪要
D.
公告、通告
查看完整题目与答案
【单选题】A 25-year-old woman has mild expression o fhemophilia A . A genetic diagnosis reveals that she is a heterozygous carrier of a mutation in the X-linked factor VIII gene. What is the most likely explana...
A.
A high proportion of the X chromosomes carrying the mutation are active in this woman
B.
Her father is affected, and her mother is a heterozygous carrier
C.
Nonsense mutation causing truncated protein
D.
One of her X chromosomes carries the SRY gene
E.
X inactivation does not affect the entire chromoso
查看完整题目与答案
【简答题】Sleep deprivation( 缺失 )is an important hidden factor in lowering the achievement of school pupils, according to researchers carrying out international education tests. It is a particular problem in ri...
查看完整题目与答案
【单选题】察觉到性别差异，恋慕异性父母，属于弗洛伊德性心理发展的 ( )
A.
口欲期
B.
肛欲期
C.
性蕾期
D.
潜伏期
E.
生殖期
查看完整题目与答案
【单选题】Look at the twins.  One is carrying a basket, _______ is carrying a box. [     ]
A.
  another
B.
  the other
C.
  the others
D.
  other
查看完整题目与答案
【单选题】在《架空输电线路无人机巡检技术》中，民用无人机分为（）、农用无人机、气象无人机、勘探无人机以及测绘无人机。
A.
侦查监视机
B.
巡查/监视无人机
C.
靶机
D.
通信中继无人机
查看完整题目与答案
【多选题】县政府向所属乡镇发文,可适用的文种有()。
A.
决定、通报
B.
通知、意见
C.
批复、纪要
D.
公告、通告
查看完整题目与答案
相关题目：
【单选题】Micro C o acquired 90% of the $100,000ordinary share capital of Minnie Co for $300,000 on 1 January 2012 when the retained earning of Minnie Co were $156,000.At the date of acquisition the fair value ...
A.
$119,000
B.
$99,000
C.
$139,000
D.
$24,000
查看完整题目与答案
【简答题】If he happens to meet another person carrying a limited amount of water, he will not rob the person of the water, as he is restrained by the ( ) , consisting of his conscience and ego-ideal.
查看完整题目与答案
【判断题】图腾与旗帜，往往有着一脉相承的关系。()
A.
正确
B.
错误
查看完整题目与答案
【多选题】县政府向所属乡镇发文，可适用的文种有( )。
A.
决定、通报
B.
通知、意见
C.
批复、会议纪要
D.
公告、通告
查看完整题目与答案
【单选题】A 25-year-old woman has mild expression o fhemophilia A . A genetic diagnosis reveals that she is a heterozygous carrier of a mutation in the X-linked factor VIII gene. What is the most likely explana...
A.
A high proportion of the X chromosomes carrying the mutation are active in this woman
B.
Her father is affected, and her mother is a heterozygous carrier
C.
Nonsense mutation causing truncated protein
D.
One of her X chromosomes carries the SRY gene
E.
X inactivation does not affect the entire chromoso
查看完整题目与答案
【简答题】Sleep deprivation( 缺失 )is an important hidden factor in lowering the achievement of school pupils, according to researchers carrying out international education tests. It is a particular problem in ri...
查看完整题目与答案
【单选题】察觉到性别差异，恋慕异性父母，属于弗洛伊德性心理发展的 ( )
A.
口欲期
B.
肛欲期
C.
性蕾期
D.
潜伏期
E.
生殖期
查看完整题目与答案
【单选题】Look at the twins.  One is carrying a basket, _______ is carrying a box. [     ]
A.
  another
B.
  the other
C.
  the others
D.
  other
查看完整题目与答案
【单选题】在《架空输电线路无人机巡检技术》中，民用无人机分为（）、农用无人机、气象无人机、勘探无人机以及测绘无人机。
A.
侦查监视机
B.
巡查/监视无人机
C.
靶机
D.
通信中继无人机
查看完整题目与答案
【多选题】县政府向所属乡镇发文,可适用的文种有()。
A.
决定、通报
B.
通知、意见
C.
批复、纪要
D.
公告、通告
查看完整题目与答案
参考解析：
知识点：
题目纠错 0
发布
创建自己的小题库 - 刷刷题