：‌As people say goodbye, people in _________ will place the palm of the right hand down, extend the fingers, and move the fingers up and down.A: North AmericansB: Indians C: West AfricansD: Central Americans答案: North Americans2、

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：‌As people say goodbye, people in _________ will place the palm of the right hand down, extend the fingers, and move the fingers up and down.​A: North AmericansB: Indians C: West AfricansD: Central Americans答案: North Americans2、