从关系模式中找出满足给定条件的元组的操作称为 【5】 。
参考答案:选择
— Mom, what did your doctor say?
— He advised me to live ______the air is fresher. [ ]
A. where
B. in which
C. in where
D. the place where
教育与处罚相结合政策的基本要求()。
A.以教为主,寓教于罚
B.教育多数.处罚少数
C.当罚则罚,罚如其分
D.坦白从宽,抗拒从严