按照我国《保险法》的规定，保险公司应当采取的组织形式是股份有

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问题判断题

按照我国《保险法》的规定，保险公司应当采取的组织形式是股份有限公司和国有独资公司。( )

答案

参考答案：对

解析：本题考查了《保险法》第七十条内容。

实验题

(9分)某校一化学实验小组通过实验分析，确定一红色粉末为Fe₂O₃和Cu₂O的混合物。

己知:①Cu₂O溶于稀硫酸生成Cu和CuSO₄,②Cu₂O在空气中加热生成CuO。

(1)实验小组欲用加热法测定Cu₂O的质量分数。取a g固体粉末在空气中充分加热，待质量不再变化时，称其质量为b g(b>a)，则混合物中Cu₂O的质量分数为__________。

(2)实验小组欲利用该红色粉末制取较纯净的胆矾(CuSO₄·5H₂O)。经查阅资料得知，在溶液中通过调节溶液的酸碱性而使Cu²^＋、Fe²^＋、Fe³^＋分别生成沉淀的pH如下：

	氢氧化物开始沉淀时的pH	氢氧化物沉淀完全时的pH	供选择试剂
Fe³⁺	1.9	3.7	A.氯水， B.H₂O₂， C.NaOH， D.氨水， E.CuO， F.Cu₂(OH)₂CO₃
Fe²⁺	7.5	11
Cu²⁺	6.0	10

试回答：

①试剂1可以为________________，试剂2可以为________________。

②固体X的化学式为____________。

③操作Ⅰ为____________________。

阅读理解

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