【单选题】在一次护肤品的新品售卖活动中,营业员在向小红介绍该新产品,小红因为没有用过这个牌子的产品迟迟不愿购买。这个时候,营业员应该
【单选题】The implied condition(s) with respect to the doctrine of deviation in a marine insurance policy is(are) ______.
A.
that the cargo be discharged from the vessel with customary dispatch
B.
that the voyage be commenced in a reasonable time
C.
that the voyage be pursued over the usual and direct route
【单选题】相量U=100∠30°,频率为50 Hz,它代表的正弦波是( )
【单选题】Most drunkers or trouble makers
A.
respect police persons.
B.
have a little more respect for policewoman than policeman.
C.
are likely to smack policewoman because a policewoman is not as strong as they are.
D.
always take it out on the policeman in his uniform.
【单选题】有一交流电源,电压U=310sin〖314t〗V,则()。
【简答题】有一交流电u=141sin(314t+35°)V,其有效值为 ( ) V