thE ChArACtEristiC oF thE nEAnDErthAl tEEth ______.
A．mAy rEsult From thEir FrEquEnt usE oF tEEth EquipmEnt
B．is thAt All thEir tEEth ArE strongly rootED
C．CAn not BE rEFlECtED in thEir CulturAl ACtivitiEs
D．hAs somEthing to Do with thEir EyEs