单项选择题
根据《药品召回管理办法》
药品生产企业作出药品召回决定后，应在72小时内通知有关药品经营企业、使用单位停止销售和使用的是（）
A.一级召回
B.二级召回
C.三级召回
D.四级召回
E.五级召回
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A.并向腰背部放射，伴恶心呕吐，呕吐物为胃内容物，吐后腹痛不缓解。8h后就诊于急诊室
最有助于诊断的检查是（
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C．尿淀粉酶
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E．腹平片
