单项选择题
A.Metoprolol B.Propranolol C.Prazosine D.Digoxin
A.Salbutamol B.Terbutaline C.Aminophylline D.Pentoxyverine
A.Aspirin B.Paracetamol C.Ibuprofen D.Indometacin
A.Omeprazole B.Domperidone C.Cisapride D.Metoclopramide
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