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急性化脓性中耳炎病人鼓膜穿孔后立即停用2%石炭酸甘油滴耳,是因为石炭酸甘油()
A . 仅有止痛作用
B . 没有抗生素水溶液效果佳
C . 对鼓室黏膜及鼓膜有腐蚀作用
D . 油剂不易经穿孔进入中耳
E . 上述都不是
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