送交者: insight 于 2005-1-30, 22:45:04:
回答: NYTIMES reviews "Guns, Germs, and Steel" & "Collapse" 由 JZ 于 2005-1-30, 11:50:38:
They are trading nations which need trade to survive. And traders are the most adventurous, inventive and individualistic.
China has huage land mass which makes trading less appealing to the rulers.