公有制经济在国民经济中属于()
A、主体地位
B、从属地位
C、与其他所有制形成平等地位
D、与其他所有制形成对立地位
参考答案:A
_____ of us has seen the movie, so we know nothing about it.
A.Some
B.Both
C.None
D.All
Don't forget to wash your hands ______ you have meals. [ ]
A. before
B. until
C. though
D. unless