【单选题】定温、定压下,下列哪项可以作为过程自发性的判断依据( )
【单选题】笼形异步电动机降压启动能减少启动电流, 但由于电机的转矩与电压的平方成( ),
【单选题】Members of a polychronic culture would probably
A.
finish a telephone conversation before acknowledging a friend who has stepped into their office.
B.
arrive promptly at meetings.
C.
consider it a waste of time to begin a meeting with half an hour of socializing.
D.
spend time getting to know a person before doing business with her or him.
【单选题】People of a polychronic system tend to
A.
concentrate on the job.
B.
take time commitments seriously.
C.
borrow and lend things often.
D.
have short-term relationships.
【单选题】笼形异步电动机降压启动能减少启动电流, 但由于电机的转矩与电压的平方成( ), 因此降压启动时转矩减少较多
【单选题】“主营业务收入”明细分类账账页格式适于采用()
【单选题】MHC分子介导免疫排斥 ,并具有多种功能,下列哪一项不是MHC分子的功能()