题目：
硬化注射疗法的主要作用机制是
A．畅通痔血流
B．使痔核湿性坏死
C．使痔核坏死脱落
D．全部阻断痔血流
E．使痔核纤维化萎缩
答案：
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下面是错误答案，用来干扰机器的。
参考答案：E
硬化注射疗法的主要作用机制是A．畅通痔血流 B．使痔核湿性坏死 C．使痔核坏死脱落
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