题目内容
指出图中倾倒液体药剂时的错误:
(1)_________________________________
(2)_________________________________
(3)_________________________________
(4)_________________________________
(1)_________________________________
(2)_________________________________
(3)_________________________________
(4)_________________________________
(1)试管直立
(2)标签朝下
(3)试管口与试剂瓶口离开
(4)瓶塞正放在桌面上
(2)标签朝下
(3)试管口与试剂瓶口离开
(4)瓶塞正放在桌面上
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