平时习惯称为“二灰土”的基层是属于( )。
A.水泥稳定类 B.石灰稳定类C.石灰工业废渣稳定类 D.水泥石灰综合稳定类
参考答案:C
一份烹调油交换份是多少克()
A.90
B.25
C.500
D.10
E.50
He was made _________ from morning till night.
A.work
B.working
C.to work
D.worked