2014年浙江省吹响了“五水共治“的号角，金华地区很多电镀厂未达环保要求被迫关闭，电镀废水一般都含有 Ni²⁺、Fe³⁺、Cu²⁺等，将含有以上离子的废水（溶液）进行化学处理时（金属活动性：铝＞铁＞镍＞铜，不考虑其他杂质的反应） 以下说法正确的是（   ）

2010年4月14日,我国青海玉树发生7.1级大地震，给我国带来了巨大的生命和财产损失。这说明                                                           

阅读理解(D)
    Sharon's teacher told them that people should protect the environment. But to keep it clean, Sharon had to find it first. After breakfast, she went outside to look.
    Sharon met Herman, a squirrel(松鼠). She asked him about the environment. Herman said, "The environment is everywhere you go. The air you just breathed is part of it. The environment is the air, the water, the soil and our food. It's everything around us." Sharon thought and thought. "I think the Sun isn't part of the environment." But Herman said, "Oh，yes, it is. The sun gives you a vitamin(维他命）you need, Vitamin D. So we should protect the environment. It's important for your life. We can't throw rubbish everywhere. We can't waste things anymore. And we should stop polluting the river. And..."
    Sharon said, " Wow, it's a big job to clean the whole environment. I think I will be busy from now on."

某同学在实验报告中记录下列数据，其中正确的是

《国务院法律援助条例》实施以来，一些有理没钱、打不起官司的弱势群体得到了当地政府的无偿法律援助。法律援助较好地维护了司法公正，为弱势群体撑起了一片蔚蓝的天。法律援助的实施体现了（    ）