Look, you can see many _________ in the pool. And here is some ________for you to keep them.
A:fish; suggestion
B:fishes; advices
C:fish; advice
D:fishes; suggestions
We had a long ____ (讨论) about the plan.
将洋葱表皮细胞放入30%的蔗糖溶液中,细胞液的浓度及颜色变化是 ( )
①根据人的需要建立新的联系,切记空喊口号
②注重“靶向性”,做到具体问题具体分析
③切实加强社会合力,坚持系统优化的方法
④实现精神脱贫,发挥精神力量的决定作用