Would you when you are in town?
A:drop off
B:drop by
C:fall off
D:fall by
《氾胜之书》中写道:“杏始华荣,辄耕轻土、弱土。望杏花落,复耕……草生,有雨泽,耕重蔺之。土甚轻者,以牛羊践之,如此则土强。”此耕作方法( )
①珍视当下 ②把握机遇
③从点滴做起 ④勇敢地迎接挑战