将x=4，y=-2代入方程mx+y=10中得：4m-2=10，
解得：m=3．
故答案为：3
—Have you moved into the new school?
—Not yet, the classrooms________.
A．are being painted
B．are painting
C．is painted
D．is being painting
息止间隙的大小为（）
A.0.5～1.0mm
B.1.5～2.0mm
C.1.0～3.0mm
D.1.0～4.0mm
E.>4.0mm
间隙的大小为（）