我们都知道向日葵能随着阳光转是因为植物的向光性。这也是科学课上老师讲过的。可是,我发现每当傍晚花生叶就会自动闭合,这又是什么缘故呢?我家的菜园有半亩耕地,爸爸每年用来种花生,田间管理我也自然是不可缺少的助手,从下 We all know that sunflower can turn with the sun because of the plant’s light. This is also what the teacher in science class said. However, I found that whenever the evening peanut leaves will automatically close, which is why? My family’s vegetable garden has half acre of arable land, my father every year to grow peanuts, field management I naturally is an indispensable assistant, from the next