聚合氯化铝铁[FeaAlb(OH)cCld]m是一种性能优良的无机高分子絮凝剂,在净水行业得到广泛应用.
My parents are not at home this evening,but I'm not .
百度是全球最大的中文搜索网站,下面是它的徽标,公司通过形象的徽标可以让消费者记住公司主体和品牌文化。请写出该徽标的构成要素及其寓意。要求语言简明,句子通顺,不超过75字。
How to keep healthy
As a middle school student, I think it is really important to keep healthy.