1 . Surprisingly different from their genetic isolation, however, those mummies seem to have openly embraced new ideas and technologies from their herder (牧民) and farmer neighbors, while also developing unique cultural elements shared by no other groups.
What can we infer about those mummies?

A．They had their own characteristic in culture.

B．Their genes had much in common with their neighbors.

C．They seemed to isolate themselves from other groups.

D．They developed faster than others.