皮皮学，免费搜题
登录
搜题
【多选题】
下列关于生物除磷的描述正确的是()。A.
菌对于磷的过量摄取主要是在透膜酶的催化作用下,通过主动运输的方式,从外部将环境中的磷酸摄入体内的
B.
菌将摄取而来的磷酸一部分用于ADP的合成,一部分用于酸盐的合成
C.
生物除磷过程需要厌氧、好氧环境的交替,且对厌氧环境要求严格,硝酸盐的浓度不宜过高
D.
在生物除磷过程中,为达到较高的去除率,应降低厌氧条件下菌向环境释放磷的程度
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】( )is produced by mixing a small amount of an air-en-training agent with ordinary Portland cement.
A.
Low heat cement
B.
Portland pozzolana
C.
Air-en-training cement
D.
High strength cement
【单选题】____________ I arrived in South Africa , I was struck by the very great difference in the atmosphere of the country.
A.
From the moment
B.
By that time
C.
Since the moment
D.
During the time
【单选题】____________ I arrived in South Africa, I was struck by the very great difference in the atmosphere of the country.
A.
Since the moment
B.
During the time
C.
By that time
D.
From the moment
【简答题】portland cement
【简答题】7 Portland cement
相关题目：
参考解析：
知识点：
题目纠错 0
发布
