______ people used the computer thirty years ago, but now it’s very popular.      [ ]

A. A few

B. Few

C. A little

D. Little

企业对重大事故的隐患整改要坚持（）原则，落实整改资金，主管部门跟踪督办。

A.定项目

B.定措施

C.定整改期限

D.定责任单位

E.定责任人