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— What would you like for breakfast?
— I like hamburgers. But now I'd like ________ some cakes.
①蔗糖 ②熔融NaCl ③盐酸 ④铜丝 ⑤NaOH固体 ⑥液态HCl⑦H2SO4⑧CO2⑨食盐水
哪一天售出的书最多,哪一天售出的书最少?