【单选题】The author probably believes that a monkey uses its prehensile tail especially for_________
A．running over a grassy plain
B．supporting itself while eating
C．swimming across a river
D．defending itself against enemies
【单选题】The author probably believes that a monkey uses its prehensile tail especially for_________
A．running over a grassy plain
B．supporting itself while eating
C．swimming across a river
D．defending itself against enemies
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