下列各组所列的两大洲中,以运河作为分界的有 ( )①亚洲、非洲 ②亚洲、欧洲③欧洲、非洲 ④北美洲、南美洲
A:②③
B:③④
C:①④
D:①②
— Of course! It was a really great inspiration(鼓舞) to the world.
—I'll go to the country to enjoy the fresh ____ (空气) and clear streams.
“微生物学之父”是指( )
下列四个几何体中,主视图、左视图与俯视图是全等形的几何体是()