题目

如图所示是A、B、C三种物质的质量m和体积V的关系图像，由图像可知，A、B、C 三种物质的密度ρA、ρB、ρC和水的密度关系是                                                           （    ）A．ρA>ρB>ρC，且ρA>ρ水   B．ρA>ρB>ρC，且ρC>ρ水C．ρA<ρB<ρC，且ρA<ρ水   D．ρA<ρB<ρC，且ρC>ρ水2. Where do people plant the trees?(改为被动语态)Where  the trees  by people?