A:face-to-face; entirely
B:face to face; entire
C:in face of; completely
D:face to face; entirely
设P是椭圆 x225+y28=1 上一点,M、N分别是两圆:(x+4)2+y2=1和(x﹣4)2+y2=1上的点,则|PM|+|PN|的最小值、最大值的分别为( )
It _______ sunny. ( )