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单选题
患儿11个月,因睡眠不安、多汗、易惊来院就诊。体检可见明显方颅、肋骨串珠,诊断为佝偻病活动期。该患儿最合适的治疗方法是()
A

大剂量维生素D

B

大剂量钙剂

C

先用维生素D后用钙剂

D

先用钙剂后用维生素D

E

在使用维生素D的同时适当补充钙剂


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