It was        to have such a heavy snow in early October, though we often have snow in winter here.[ ]

A. abnormal

B. common

C. informal    

D. usual

工人从事具体职业生活所应遵循的道德规范，是社会道德在工人职业上的体现，是社会主义（）之一。

A.劳动

B.职业道德

C.自愿

D.平等就业