三相鼠笼式异步电动机,当采用延边三角形起动时,每相绕组的电压()。A.比Y—△起动时 发布时间:2018-01-15 17:11 │ 来源:www.tikuol.com 题型:单项选择题 问题: 三相鼠笼式异步电动机,当采用延边三角形起动时,每相绕组的电压()。A.比Y—△起动时大,比全压起动时小B.等于全压起动时的电压C.是全压起动时的3倍D.是全压起动时的1/3倍
题型:单项选择题 下列( )行为属于证券过户。A.因交易引起的证券从一个账户转移至另一账户B.因转让引起的证券从一个账户转移至另一账户C.因赠与引起的证券从一个账户转移至另一账户D.因股份注销使某证券从某账户中单方面减少 查看答案
题型:单项选择题 A.Americans have not chosen legalization as a solution to the drug problem.B.The current drug war is not working and legalization may be the only solution.C.The black market would really disappear with the legalization of drugs.D.Politicians who have answers to the drug problem claim the most votes. 查看答案