A:1a<1b
B:a2>b2
C:ac2+1>bc2+1
D:ac>bc
下列各数中最小的是( )
In April, the weather in some places in Shanxi was really changeable. People still remember they have _______ four seasons in a week.
713 除以一个数的商与 911 乘 1113 的积相等,求这个数是____.