用混凝沉淀法处理废水时,应考虑混凝剂的选择和最佳投加量

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问题:

用混凝沉淀法处理废水时,应考虑混凝剂的选择和最佳投加量

考点:环保气象安全技能考试环境保护监察员(中级)环境保护监察员(中级)题库
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阅读下面短文,完成所给任务。

There is a park next to my home. But I don’t often go there. One afternoon I go into the park and find it is very small. In the park, there are two roads. One is clean. There are ①许多 flowers on the two sides. The other is dirty. But I go along the clean road. Ah! There is a small lake there. It’s very nice. There are trees, flowers and chairs next to it.

I am so happy.

小题1:Where is the park?                                              

小题2:There are        roads in the park

小题3:请把①处短语翻译为英语。                                  

小题4:请把②处句子翻译为汉语。                                  

小题5:判断正(T)误(F)。There are trees, flowers and chairs next to the lake.

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其他合成纤维长丝弹性单纱

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如何进行0~5分级法评价肌力?

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污水处理的主要方法有:①中和法;②化学沉淀法;③氧化还原法;④过滤法。其中属于化学方法的有 [ ]

A.①②③

B.②③④

C.①②④

D.①②③④

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现行宪法规定,行使宪法解释权的机关是______。

A.全国人大
B.全国人大法律委员会
C.全国人大常委会
D.全国人大 * * 团

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