A:文化的差异反映了不同的意识形态
B:文化的差异影响人们之间的交往
C:文化的差异是交往不可逾越的障碍
D:文化的差异体现民族文化的优劣
She reached the top of the hill and stopped _______ on a big rock by the side of the path.
My grandmother always treats others with _______.
若关于x的方程a2x+(1+1m)ax+1=0(a>0,a≠1)有解,则m的取值范围是( )