患者男性，二天前被埋在地里的利器划破右足底，曾来院扩创包扎，注射破伤风抗毒素。今来院复诊换药（需戴无菌手套，在医学模拟人上进行操作）(20分)
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含鞣质的五倍子、地榆等中药与四环素、红霉素联合用
A. 产生络合物，妨碍吸收
B. 增强毒性
C. 产生沉淀，降低疗效
D. 抑制药物活性
E. 引发药源性疾病
Why does the professor mention the Moons mantle？
A. To explain how scientists are able to estimate the age of meteor impacts
B. To indicate what part of the Moon could provide key evidence about the Moon"s composition
C. To explain how scientists know that meteors penetrate the Moon"s crust
D. To point out an obvious difference between the Moon and Earth
女性，43岁，间断性上腹痛9年，阵发性腹痛伴呕吐3天。
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