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已知\(\frac {\sin {\left ( {α-\pi } \right )+\cos {\left ( {\pi -α} \right )}}} {\sin {\left ( {\frac {\pi } {2}-α} \right )+\cos {\left ( {\frac {\pi } {2}+α} \right )}}}=5\)，则\(\tan {α}=\) ( )
A.\(-2\)
B.2
C.\(-\frac {3} {2}\)
D.\(\frac {3} {2}\)
参考答案：D
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