In the history of ； Dynasty， silk production entered its prime period， with output and qua

In the history of ； Dynasty， silk production entered its prime period， with output and quality both reaching unprecedented levels.

Q游网qqaiqin

A.Song

此文来自qqaiqin.com

B.Tang

C.Ming Q游网qqaiqin

D.Yuan 此文来自qqaiqin.com

correct answer：Tang

Q游网qqaiqin