题目

只用一种试剂就能鉴别氨氧化钠、氯化钠^稀硫酸3种溶液，该试剂可以是(    )。 A．氯化钡溶液    B．紫色石蕊试液    C．碳酸钠溶液    D．硫酸钾溶液    答案：BIn English-speaking countries, sometimes people express their meanings in a way __________ is different from each other．A.in whichB.for whichC.whatD.that