Chlorophyll is produced by the action of light on the plants'leaves.光对植物的叶子发生作用从而产生叶绿素.The disease causes varying degrees of destruction of the chlorophyll.这一病害使叶绿素遭到不同程度的破坏.The structure of the chlorophyll molecule...
下图展示了昆虫怎样由卵成长为成虫的过程.The pictures below show, how insects grow from eggs into adults.成虫的生命期很短.Adult fireflies live a short life.目的观察甲苯咪唑对广州管圆线虫成虫的杀灭效果.Objective To observe the effect of mebendazole against adult worm of A...