单项选择题

People living in the Middle East first learned to grow plants for food about 10,000 year ago.

A． Right
B． Wrong
C． Not mentioned
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单项选择题
It is logical that a detailed learning of plants and their properties must be extremely ancient.
A． Right
B． Wrong
C． Not mentioned
单项选择题
Today people usually acquire a large amount of botanical knowledge from textbooks.
A． Right
B． Wrong
C． Not mentioned
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