单项选择题Universities are able to act as monopsonists in the market for professors becauseA.a university usually does not consider hiring faculty members from another institution.B.faculty members usually have to move to a different city when changing universities.C.students like all of their professors.D.senior faculty members are willing to move to a new university at any cost.
单项选择题电源屏增加了很多新的功能,下列哪一项功能不是新增的( )。 A、A.旁路输出功能 B、B.VS功能 C、C.故障告警信息 D、D.OVD功能