What will people do when someone breaks the rule?
A.Criticize him or her.
B.Have a group discussion about it.
C.Make more rules.
D.Ask him or her to work more in the woods.
第6题
A.一支移液管未经清洗,可吸取多种溶液
B.移液管移液时竖直插入溶液底部
C.移液管使用之前应除去内壁水分
D.放液时,接受容器倾斜约30℃,与竖直的移液管尖端接触
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