光纤信号曲线完整正确的叫法为（）
A.光纤前向散射信号曲线
B.光纤后向发射信号曲线
C.光纤时域反射波形
D.光纤曲线
参考答案：C
When she left ________ college, she got a job as ________ reporter in a newspaper office．
A．/; the
B．/; a
C．a; the
D．the; the
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