【单选题】【消耗次数：1】
She happily deposits the money she has earned teaching English in her savings account. Find any misplaced modifier in the sentence
①
happily
②
she has earned
③
in her savings account
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随机题目
【多选题】
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①
所选用的缓冲溶液不能与反应物、生成物发生作用
②
选择适当缓冲对，使缓冲容量接近极大值
③
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④
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【多选题】
已知下列反应；CuCl2＋SnCl2 = Cu ＋SnCl4;FeCl3＋Cu= FeCl2＋CuCl2在标准状态下按正反应方向进行。则有关氧化还原电对的标准电极电位由大到小排序为
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①
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②
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③
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④
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