Question

The Chinese knew how to produce silk by about 2700 B.C.

A.
True

B.
False

Answer 1

I think that's true.

"According to Chinese tradition, the history of silk began in the 27th century BCE. Its use was confined to China until the Silk Road opened at some point during the later half of the first millennium BCE." Source: http://en.wikipedia.org/wiki/History_of_silk

Answer 2

It is TRUE~