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【单选题】
利用70%乙醇水二苯基乙二酮进行重结晶时,对烧杯中的二苯基乙二酮晶体转入布氏漏斗时,杯壁上往往还粘有少量晶体,需选用液体将杯壁上的晶体冲洗下来后转入布氏漏斗,下列液体最合适的是( )。A.
无水乙醇
B.
饱和NaCl溶液
C.
70%乙醇水溶液
D.
滤液
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A.
recommended
B.
commended
C.
amended
D.
demanded
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