单项选择题

A1/A2型题 经典的Westgard多规则指的是()

A.12s(警告)/13s
B.12s(警告)/13s/22s
C.12s(警告)/13s/22s/R4s
D.12s(警告)/13s/22s/R4s/41s
E.12s(警告)/13s/22s/R4s/41s/10