A:负极,被氧化
B:正极,被氧化
C:负极,被还原
D:正极,被还原
It was such a funny show that people couldn't help again and again.
如图,在Rt△ABC中,∠C=90°,AM是BC边上的中线,sin∠CAM=35,则tanB的值为( )
____,蜡炬成灰泪始干。《无题》李商隐