选项分析如下:A. Seperempat(四分法)和Metode kisi(网格法)均是标准样品缩分与分层取样的代表方法;B. 上下法和中间法缺乏明确标准缩分技术支撑;C. 称量与粉碎属于样品处理步骤而非缩减方法;D. 1/2法、1/3法命名不规范且未被行业广泛采用。综合分析选项A包含有效的标准缩分方法,故选A。反馈 收藏
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MemberInfoExtensions MemberTypes MethodAttributes MethodBase MethodBase Konstruktor Properti Metode Sama dengan GetCurrentMethod GetGenericArguments GetHashCode GetMethodBody GetMethodFromHandle GetMethodImplementationFlags GetParameters Gunakan Operator MethodBody ...
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