题目内容
操作、维护工业机器人的人员在饮酒、服用药品或兴奋药物不得操作、维护
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安装工业机器人的场所除操作人员外，其他人员可以靠近
Effective practice is consistent, intensely focused, and targets content or weaknesses that lie at the edge of one's current abilities. So if effective practice is the key, how can we get the most out of our practice time?(1)Focus on the ______ at hand.(2)Frequent ______ with allotted breaks are common practice habits of elite performers.(3)Practice in your brain in ______ detail.Effective practice is the best way we have of pushing our individual limits, achieving new heights, and maximizing our potential.[音频]
Fe3+，Al3+对铬黑T有
实验室中用CaCO3标定EDTA溶液的浓度时，通常选用的指示剂是
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