A:隐逸 附庸 傲骨 媚态
B:隐逸 傲骨 附庸 媚态
C:傲骨 隐逸 附庸 媚态
D:傲骨 媚态 隐逸 附庸
用适当的介词填空
What do you like doing ____the evening?
Thanks ____ your letter.
Look ________ the blackboard and listen____me.
We begin classes ____ about 8:00.
设x,y∈R,则“x=0”是“复数x+yi为纯虚数”的( )
两个等量点电荷P、Q在真空中产生电场的电场线(方向未标出)如图所示.下列说法中正确的是( )