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所组成的团体是否具有固定的共同筛选？

问题（中文）
所组成的团体是否具有固定的共同筛选？
Question (EN)
Are groups formed common screening fixed?
中文内容由 Google Cloud Translation 自动生成，仅供参考；请以英文原文为准。问答资料来自欧盟化学品管理局（ECHA）官方网站。
答案（中文）
不，基于算法形成的组并非固定不变。首先，整个组将作为一个整体进行人工筛选。然而，根据人工筛选的结论，该组可能被认定为无效，或者需要将其拆分为更小的组，其中包含可能具有相似（生态）毒理学作用机制的物质。对于任何未满足检测信息要求的物质，可能会选择组中的某种（或某些）物质进行测试，通常是预期代表最差情况的物质。
Answer (EN)
No, groups formed based on algorithms are not fixed. In the first instance the whole group will be subject to manual screening as a whole. However, based on the conclusion of the manual screening it may be that the group is found invalid, or it needs to be split into smaller groups containing substances with likely similar (eco)toxicological modes of action. With regard to any detected information requirements that are not met, it is possible that one (or some) of the substances in the groups may be selected for testing, typically the substance expected to represent worst case.