干性发质的特点是缺乏油脂和（）。
A.水分
B.营养物
C.蛋白质
D.保湿剂
参考答案：A
—A nice day today, isn't it?
—Yes. _____ go for a picnic and relax ourselves?[ ]
A. Would you like
B. Why don't
C. What about
D. Why not
白葡萄酒发酵期为（）天左右。
A.7
B.15
C.20
D.30
