London is the capital______England. ( )
已知圆的极坐标方程为:ρ2-42ρcosθ-π4+6=0.
(1)将极坐标方程化为普通方程;
(2)若点P(x,y)在该圆上,求x+y的最大值和最小值.
____ stories, Mike told me all about it.
选词填空
风( )地刮着。