观察该图,从中可得出的结论是
A.秦汉时期中国丝织技术领先于世界
B.唐宋时期私营丝织业水平超过官营
C.古代丝织业中心由关中辐射全国
D.元明清时期丝织业重心在东部地区
答案:D
归来位于脐中下()寸,前正中线旁开()。
I don't think the girl is right, _____? [ ]
A. do I
B. is she
C. isn't she
D. does she