《汉书》记载“(此地)东则接汉,阸(e限界)以玉门、阳关,西则限以葱岭。”西汉政府设置哪一机构管辖材料中记载的地区( )
A:西南夷
B:河西四郡
C:西域都护府
D:益州郡
①—Who is he?
—He's my father.
②— Who is she?
— She is my grandmother.
③—Who is she?
—She's my mother.
④—Who is he?
—He's my grandfather.
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我国美丽富饶的南海诸岛,有许多是由珊瑚虫分泌物堆积而构成的珊瑚礁形成的.珊瑚虫属于腔肠动物,其显著特征是( )
关于台湾的叙述正确的是