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【多选题】
在分析测定中,下面情况哪些是属于系统误差( )A.
天平的两臂不等长
B.
滴定管的读数看错
C.
试剂中含有微量的被测组分
D.
在沉淀重量法中,沉淀不完全
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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A.
There is no one to teach them how to do it.
B.
Not very many students are interested in it.
C.
The college doesn't have any rock-climbing equipment.
D.
There are no appropriate places for rock climbing nearby.
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【简答题】A．There is no one to teach them how to do it. B．Not very many students are interested in it. C．The college doesn't have any rock-climbing equipment. D．There are no appropriate places for rock climbing...
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A.
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B.
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C.
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D.
220.103.256.56
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