问题
选择题
We ______certain livings as birds not because they have long legs or short legs,but because they all have
feathers.
A．think
B．classify
C．look
D．divide
答案
答案：B
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We ______certain livings as birds not because they have long legs or short legs,but because they all have
feathers.
A．think
B．classify
C．look
D．divide
答案：B