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【多选题】
由于是分子吸附,而且大网状聚合物吸附剂对有机物质的吸附能力一般低于活性炭,所以比较容易,方法有()A.
最常用的是以低级醇、酮或其水溶液解吸
B.
对弱酸性溶质用碱来
C.
对弱碱性物质用酸来
D.
如吸附是在高浓度盐类溶液中进行的，则常常用就能解吸下来
E.
对于易挥发溶质可用热水或蒸汽解吸
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举一反三
【简答题】The bed has been ________ in the family. It was my great-grandmother’s originally. A) handed out B) handed over C) handed down D) handed round
【简答题】对产品质量好、信誉好、规模大的供货方可以实行( )
【单选题】The old man got sick last summer and ______in bed since then . [ ]
A.
was
B.
had been
C.
has been
D.
would be
【单选题】The bed has been ______ in the family. It was my great grandmother's original bed.
A.
handed out
B.
handed over
C.
handed down
D.
handed round
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