In what way is General Xiang Yu's order similiar to Dr. Ariely's experiment?
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In reality, why are people reluctant to see their options vanish?
How do you understand the English saying "Less is more"?
莫尔法测定Cl-含量时,要求介质的pH在6.50-10.00的范围内,当pH>10.00,则:
AgCl吸附氯离子
B. 有Ag2O沉淀生成,干扰终点的判断
C. AgCl沉淀不完全
D. Ag2CrO4沉淀不生成
氯化物中氯含量的测定实验结束后,酸式滴定管的洗涤顺序是:先用自来水洗涤3次,再用纯水洗涤3次。
A. 正确
B. 错误