A:六边形的内角和为360度
B:多边形的外角和与边数有关
C:矩形的对角线互相垂直
D:三角形两边的和大于第三边
钾肥可助庄稼抗倒伏,下列属于钾肥的是( )
Where is your ball?____
British people eat ________ a lot, and they are cooked in different ways.