投保人对保险标的所具有的法律上承认的利益称为()
A、保险利益
B、经济利益
C、法律权益
D、经济权益
参考答案:A
如图,理想变压器原、副线圈匝数比n1∶n2=2∶1,V和A均为理想电表,灯泡光电阻R1=6Ω,A、B端电压u1=12sin100πt(V).下列说法正确的是
A.电流频率为100Hz
B.V的读数为24V
C.A的读数为0.5A
D.变压器输入功率为6W
A quality assurance team should be ______. ①associated with any particular development group ②depended upon any particular development group ③responsible for reporting directly to management ④in-depended upon any particular development group
A.①②
B.②③
C.③④
D.①②③④