A:how much cost they are
B:how much do they cost
C:how much they cost
D:how much are they cost
水是人类生存的重要组成部分,通过水的三态变化,地球上的水在不停地循环,以下关于水物态变化及人类对水的利用的说法中,正确的是( )
某几何体的三视图如图所示,则该几何体中,面积最大的侧面的面积为( )
Mrs Read __________ the cleaning every day.