____ anyone phone during the board meeting, please tell them I am busy.
A:Should
B:Will
C:May
D:Can
已知圆O的直径是方程x2﹣5x﹣24=0的根,且点A到圆心O的距离为6,则点A在( )
冰穿悬垂 涓涓惜流 气像万千 绿树掩映 荒山秃铃 雪山高园
如果cos(π+α)=-13,那么sin(5π2-α)=( )