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【单选题】
下列情况属于过失误差的是 :( )
A.
滴定中选择的指示剂不是最恰当的
B.
试剂中含有少量干扰物质
C.
试液未充分摇匀
D.
因保管不善，试样中易挥发组分部分损失
拍照语音搜题，微信中搜索"皮皮学"使用
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