下列有关植物植株生长问题,叙述不正确的是() A . 根生长最快的部位是伸长区,该部位的细胞有较强的分裂能力和生长能力 B . 植株生长需要量最多的无机盐是含氮、磷、钾的无机盐 C . 枝条是由芽发育来的,根据着生部位不同,芽可分为顶芽和侧芽 D . 给植物施肥时,应以农家肥为主,配合施用化肥4. ( 2015 江办南示鼓楼区,15) —Liu Xiang has announced the end of his sporting career. --.But I think he is still one of the greatest athletes in Chi?na. A. Don’t mention it B. That’s such a pity C. I can’t agree more D. I'm afraid he couldn’t