单项选择题

Have you got a spare pen

A．a short
B．an extra
C．a thin
D．along
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单项选择题
Our direct contact with plants grows with the process of industrialization.
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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