已知⊙O1与⊙O2的半径分别r1,r2是方程x2-6x+8=0的两实根,若⊙O1与⊙O2的圆心距d=5,则⊙O1与⊙O2的位置关系( )。
相交
Many people were guilty the rude behavior in their anti-Japanese protests, because of which some were even charged damaging some TOYOTA on purpose.
A.of; for
B.of; of
C.for; with
D.for; on
下列各项中,不属于植物芳香油具有的功能的是[ ]
A.提高神经系统的兴奋性
B.提高免疫力
C.直接调节新陈代谢
D.保健、美容等