关于亚洲地形的叙述,错误的是( )
A:地形类型复杂多样,以高原和山地为主
B:地表起伏大,地势高低相差悬殊
C:地势中间高,四周较低
D:地形类型比较单一,以高原为主
若2a=3b=4c,且abc≠0,则a+bc-2b的值是( )
Jim, with his family, ______ a bus to go home every day.