同一平面内,半径分别是2cm和3cm的两圆的圆心距为5cm,则这两圆的位置关系是
A:相离
B:相交
C:外切
D:内切
细胞分裂过程中,最先进行的是( )
We suggest that Mr Smith be told about his____(身体的)condition as soon as possible.