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题目内容
（管理英语1）
How long does a handshake usually last?
选择一项：
a. 3 minutes.
b. 2-3 seconds.
c. As long as the conversation lasts.
选择一项：
a. 3 minutes.
b. 2-3 seconds.
c. As long as the conversation lasts.
参考答案
