房屋的结构部分不包括()。
A.基础
B.门窗
C.承重构件
D.非承重墙
参考答案:B
There's _____ beef in the refrigerator. Go and buy some.[ ]
A. little
B. a little
C. few
D. a few
ZJ17卷烟机采用()结构设计,刀头由转一圈切一支发展到刀头转一圈可切四支烟。
A.单刀单切
B.单刀双切
C.双刀双切
D.双刀单切