看图回答,A=( );B=( )。
I'm Emily. I'm from the UK. My father is a teacher. He is tall and strong (强壮的). My mother is a teacher, too. She is short and thin. I'm a student. I'm a little fat. I have a dog. It has big ears and a small nose. We have a happy family.
×=1200 ×=1200 ×=1200
因数的末尾共有几个零,积的末尾就只有这几个零