下列物质组成示意中,正确的一组是[ ]
A.地壳→化学元素→岩石→矿物
B.矿物→地壳→化学元素→岩石
C.地壳→矿物→化学元素→岩石
D.化学元素→矿物→岩石→地壳
答案:D
The victim’s parents have received thousands of messages of sympathy, which is comfort to them.
A./; a
B.the; a
C.the; /
D./; /
试述秦汉时期打击匈奴的不同后果。