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单项选择题

______ sets man apart from the rest of the animals is his ability to use work tools.

A．That
B．Which
C．Who
D．What
相关考题

This term the students have learned ______ last term.A．...

单项选择题This term the students have learned ______ last term.

A．twice as many new words as
B．as many new words twice as
C．twice as much new words as
D．twice as more new words as

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