对职业伤害事故，按照其后果的严重程度分类，特大伤亡事故是指一次死亡（）人及其以上的事故。 A.

B.chickenpox

C.diabetes

D.coronarydisease

B.bonebroken

C.shock

D.flood

B.has

C.was

D.does

B.nurse

C.GP

D.dentist

B.five

C.one

D.a

B.30mins

C.10mins

D.2hours

B.good

C.clean

D.processed

B.IDcard

C.drivinglicense

D.passport

B.schoolbus

C.bus

D.train

B.library

C.studentunionshop

D.financialoffice