问题
选择题
It is in their ability to speak________humans________from animals.[ ]
A．which；differ
B．that；different
C．which；different
D．that；differ
答案
答案：D
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It is in their ability to speak________humans________from animals.[ ]
A．which；differ
B．that；different
C．which；different
D．that；differ
答案：D