直流电机的主要结构包括() The main structure of DC motor includes ()
A.主磁极Main magnetic pole
B.电刷brush
C.换向器commutator
D.电枢armature
单选题You are designing an organizational unit (OU) structure to manage the New App servers. What should you do?()A Create one OU that includes both the web servers and the database servers. B Create one OU that includes the web servers and one OU that includes the database servers. C Create one OU that includes the web servers. Then Place the database servers in the Computer Containers.D Place the web server and the database servers in the Domain Controller OU.
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单选题The main difference between a motor control circuit containing low voltage protection and low voltage release is that the latter contains ().A a magnetic operating coilB normally open line contactsC thermal-overload protectionD a momentary-contact start button
单选题If a DC motor runs hot, the cause may be ()A high mica conditionB low ambient temperatureC clogged ventilation ductsD an open in the shunt field
单选题In motor ship, () is often used to recover some of the heat carried in the exhaust gases from the main engine.A an diesel oil heaterB a waste heat boilerC a fresh water generatorD all the above
单选题You are designing an organizational unit (OU) structure to manage the New App servers. What should you do? ()ACreate one OU that includes both the web servers and the database servers.BCreate one OU that includes the web servers and one OU that includes the database servers.CCreate one OU that includes the web servers. Then Place the database servers in the Computer Containers.DPlace the web server and the database servers in the Domain Controller OU.
判断题直流电机主要结构是定子、转子。A 对B 错
单选题Deck machinery, which is also known as hull machinery, includes all power driven equipment located ()the machinery spaces that is () with the main propulsion plant.A inside;associatedB inside;not associatedC outside;associatedD outside;not associated