聚合硫酸铁混凝剂属于低分子无机盐类混凝剂。_爱下问搜题

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问题判断题

聚合硫酸铁混凝剂属于低分子无机盐类混凝剂。

答案

参考答案：错

多项选择题

Part 1: Self-introduction

·The interlocutor will ask you and your partner questions about yourselves. You may be asked about things like "your hometown", "your interests ", "your career plans", etc.

Part 2: Presentation

·The interlocutor gives you two photographs and asks you to talk about them for about one minute. The examiner then asks your partner a question about your photographs and your partner responds briefly. Then the interlocutor gives your partner two photographs. Your partner talks about these pictures for about one minute. This time the interlocutor asks you a question about your partner, s photographs and you respond briefly.

Part 3: Collaboration

·The interlocutor gives you andyour partner a list of topics. Both of you need to choose one to discuss together: The interlocutor may join in the conversation and ask you questions, but you and your partner are expected to develop the conversation.

Topic 1:

Topic 2:

Children’s Family Education

Topic 3:

Factors That You Should Consider When You Plan to Buy a House

Topic 4:

Topic 5:

Threats in the 21st Century

单项选择题

社会工作者小于采用个案研究方法对某社会工作服务机构的运行机制进行研究，他侧重介绍服务机构的组织架构，描述服务输送的具体流程，探讨服务输送的各方关系，分析服务输送过程的优点和不足，最后提出服务输送的改善建议。小于的上述研究体现出个案研究的特点是（）。

A.帮助社会工作服务机构完善服务输送过程

B.验证社会工作服务机构运行机构的研究假设

C.追求研究资料的研究结论的精确性

D.揭示社会工作服务机构运行的因采关系