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3 ̎�팍(sh��)�(y��n)

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4.2 �ؚ�r(sh��)�g�Լ��ؚ⏊(qi��ng)�Ȍ�(du��)̎��Ч��Ӱ�

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4.3 ��Һ��Ⱥ��ؓ(f��)�Ɍ�(du��)̎��Ч��Ӱ�

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5 �Y(ji��)�Z

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