题目内容

康复环境设施的基本原则是______。

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为使沉淀溶解损失减小到允许范围，可通过加入适当过量的沉淀剂来达到这一目的。( )

A. 对
B. 错

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Passage TwoQuestions 29 to 31 are based on the passage you have just heard.

A. 1788.
B. 1840.
C. 1842.
D. 1850.

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在法扬斯法中，为了使沉淀具有较强的吸附能力，通常加入适量的糊精或淀粉使沉淀处于胶体状态。( )

A. 对
B. 错

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Passage OneQuestions 26 to 28 are based on the passage you have just heard.

A. The lack of a real form of government structure.
B. The creativeness of Eskimos.
C. The excitement of a legal system with strict laws.
D. The strong judicial powers of a headman.

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