润粉又化分为()。
A.水粉
B.油粉
C.素粉
D.干粉
参考答案:A, B
—Do you think David will fail in the maths exam again?
—____________.
A.No, I don’t believe it
B.I hope not
C.I expect not
D.I don’t suppose it
什么叫软饮料及其分类?