位于亚洲西部的人类文明发祥地是( )
A:印度河流域
B:黄河——长江中下游地区
C:尼罗河三角洲
D:美索不达米亚平原
下列说法正确的是( )
(1) She bought a ____ (bath) suit last Sunday.(2)I like doing some ____ (shop) at weekends.(3)She hasn't ____ (feed) the cat yet.(4)There are about ten ____ (well) in that village.(5)Has the camera been____ (pack) yet?
造成吸毒人群中艾滋病流行的主要原因是( )