单项选择题

Questions 4 to 7 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions. Now listen to the conversation. According to the man, how do some bees use their sense of smell

A．To find their way back to the nest.
B．To locate plant fibers.
C．To identify kinds of honey.
D．To identify relatives.

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单项选择题

单项选择题

Questions 4 to 7 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions. Now listen to the conversation. According to the man, how do some bees use their sense of smell 您的浏览器不支持 audio 元素。