单项选择题

A．She is not good at writing.
B．She is probably upset.
C．She has called to talk about her problem.
D．She has found out what’s troubling her.
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单项选择题
A．Because she owned a car.B．Because she drove so well.C．Because it was her childhood dream.D．Because she liked the handsome uniforms of the taxi drivers.
A．Because she owned a car.
B．Because she drove so well.
C．Because it was her childhood dream.
D．Because she liked the handsome uniforms of the taxi drivers.
填空题
The artificial joint with, being a good imitation of natural bone protein, can attract bone cells and become quickly incorporated into the body.
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