人类起源于( )
A:大猩猩
B:黑猩猩
C:类人猿
D:森林古猿
质量相同的蜡块和木块漂浮在水中,它们排开水的体积(ρ蜡=0.9×103kg/m3,ρ木=0.4×103kg/m3)( )
—I don't like to use QQ to communicate with my classmates. What about you, Maria?
—I don't, _______.