皮皮学，免费搜题
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搜题
【单选题】
使用碱式滴定管时，下列错误的是A.
用待装液淌洗滴定管2～3次
B.
左手控制活塞，大拇指在前，食指在后挤捏玻璃珠外橡皮管，中指、无名指和小指辅助夹住出口管
C.
右手控制活塞，大拇指在前，食指在后挤捏玻璃珠外橡皮管
D.
读数时滴定管应保持垂直，视线、刻度线、液面凹月面三点一线
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皮皮学刷刷变学霸
举一反三
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