We tried to grow some copper sulphate crystals with our children.我们想跟孩子们一起制作硫酸铜晶体。Adding sulphate to the solution will give a precipitate.将硫酸盐加入该溶液会产生沉淀.More ammonium sulphate solution is being recovered in the process o...
老师们常认为青少年工作者纪律性差且能力低下。Teachers often view youth workers as undisciplined and ineffectual.非国有企业逐渐挤掉了效率低下的国有企业。Non-state firms gradually elbow aside the inefficient state-owned ones.患有诵读困难症并不意味着智力低下。两者相差甚远。Being dyslexic d...
If cabbage, cauliflower, sunflower seed oil, colza is oily, wait.如卷心菜 、 菜花 、 葵花子油 、 菜子油等.Rape or colza seeds, whether or not broken.油菜子, 不论是否破碎.Only use colza cake for fertilizing.以菜籽饼为基肥和追肥....