粉底的作用是：（）、（）、（）
参考答案：改善肤质；修饰脸型；遮盖皮肤瑕疵
—Who is the young man in the picture?
—My brother. He has _____ the army for two years. [ ]
A. joined
B. left
C. been in
D. come to
按照《船员培训管理规则》的规定，船员培训是如何分类的？
