질문
문제 이해
32. Many evolutionary biologists argue that humans
□□. We needed to
trade, and we needed to establish trust in order to trade.
Language is very handy when you are trying to conduct
business with someone. Two early humans could not only
agree to trade three wooden bowls for six bunches of
bananas but establish rules as well. What wood was used
for the bowls? Where did you get the bananas? That
business deal would have been nearly impossible using
only gestures and confusing noises, and carrying it out
according to terms agreed upon creates a bond of trust.
Language allows us to be specific, and this is where
conversation plays a key role.
① used body language to communicate
② instinctively knew who to depend on
□□□□
풀이
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유사 문제와 풀이
3