单选题：According to Paragraph 4, the "washout" phase was designed t

题目分类：英语四级
题目类型：单选题
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题目内容：

According to Paragraph 4, the "washout" phase was designed to______． A．make the research be accomplished with a result as satisfactory as possible
B．obtain references for the possible health effects of stainless steel bottles
C．eliminate substances in bodies that may affect the result of the research
D．limit the sort of beverages taken in by participants to the minimum level

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分类：英语四级题型：单选题

40._________

40._________

分类：英语四级题型：单选题

某工程施工过程中，监理工程师要求承包单位在工程施工之前，根据施工过程质量控制的要求提交质量控制点明细表并实施质量控制，这

某工程施工过程中，监理工程师要求承包单位在工程施工之前，根据施工过程质量控制的要求提交质量控制点明细表并实施质量控制，这是(　)的原则要求。 A．坚持质量第一

分类：英语四级题型：单选题

设备安装过程的质量控制主要包括(　)。

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分类：英语四级题型：单选题