A:for which
B:in which
C:of which
D:from which
如图,∠AOB为直角,∠AOC为锐角,且OM平分∠BOC,ON平分∠AOC,求∠MON的度数.
Which ____ bigger, the sun or the moon?
在△ABC中,sinA=513,cosB=35则cosC的值为( )