A:个大质优的太空椒
B:体大生长迅速的转基因超级鼠
C:高产抗倒伏的杂交小麦
D:水肥充足长出的大花生
Whose pen is it? It____ Peter's. His name is on the cover.
某工厂排出的废水含有pH<7,并含有较多的Cu2+,它们对人体和农作物都有害从环保和回收的角度考虑,切合实际的废水处理方案是加入( )