【简答题】We should e______( 鼓励 ) a student when he meets with difficulties.
【多选题】《中国药典》(2015年版)检查重金属检查法收录了以下哪些方法
【简答题】A.When he goes for a walk. B.When he drives the car. C.When he passes somebody. D.When he chats with Peter.
【多选题】《中国药典》(2015年版)检查重金属检查法收录了以下哪些方法