新义务教育法规定，国家实行（）年义务教育制度。
A.九
B.十
C.十一
D.十二
参考答案：A
What did you _____ the film ? [ ]
A. think about
B. think of
C. think over
D. think out
独立瓶组间当气瓶总容积小于等于2立方米时，与民用建筑的防火间距不小于（）米
A.3
B.5
C.8
D.15
