When and how was the tea discovered?
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How many categories can the tea be classified? What are they?
During the visiting, the local guide should keep the visiting safe and smooth.
A. 对
B. 错
When visitors get on the coach, the local should check the number of the baggage.
A. 对
B. 错
In the scenic spot,the local guide should give tourists a brief introduction.
A. 对
B. 错