判断-a'u+~.T8Y'V:W+j7W/d-R;Z6i*I*}
1000÷300=10÷3=3……1 ………………………… 请选择×√,N5@7\1E3R1c.i*X9J;n+o0g:F-a'u+~.T8Y'V:W+j7W/d-R;Z6i*I*}