Reasonable can be regarded as a general word in legal language.
A、正确
B、错误

A.急性梗阻性化脓性胆管炎
B.急性胆囊炎
C.急性胰腺炎
D.胆总管结石
E.胆道蛔虫病

A.随机抽样
B.分层抽样
C.整群抽样
D.系统抽样