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【单选题】
According to the passage, some job applicants were rejected.A.
because of their carelessness as shown in their failure to present a clean copy of a resume
B.
because of their inadequate education as shown in their poor spelling in writing a resume
C.
because they failed to give a detailed description of their background in their applications
D.
because they eliminated their names from the applicants list themselves
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举一反三
【单选题】分离苯和苯酚的混合物,通常采用的方法是
A.
加水振荡后用分液漏斗分离
B.
加稀盐酸振荡后用分液漏斗分离
C.
加氢氧化钠溶液后用分液漏斗分离
D.
加溴水振荡后滤去白色沉淀
【单选题】分离苯和苯酚的混合物 , 通常采用的方法是( )。
A.
振荡混合物 , 用分液漏斗分离
B.
加水振荡后 , 用分液漏斗分离
C.
加稀盐酸振荡后 , 用分液漏斗分离
D.
加入 NaOH 溶液后振荡 , 用分液漏斗分离 , 取下层液体通入 CO2, 待分层后分离