A:MmNnUuVv
B:mmNNuuVv
C:mmnnUuVV
D:mmNnUUVv
多音字组词
好 hǎo____ hào____
宿 sù____ xiǔ____
You can have second try if you fail this time.
四棱锥P﹣ABCD的三视图如图所示,则该四棱锥的外接球的表面积为( )