Come here, children! Look at the elephant.
Wow! It has eyes and ears.
A:big; small
B:small; big
下列计算中,正确的有( )①am×an=amn;②am+n2=a2m+n;③2anb3×-16abn-1=-13an+1bn+2;④a6÷a3=a2。
四季变化最明显的地区是
—Why you so busy today? —Because I’m getting ready Christmas.