题目内容
(请给出正确答案)
[单选题]
有两种溶液,甲溶液中蛋清的浓度为20%,蜂蜜的浓度为15%,乙溶液中蛋清的浓度为50%,蜂蜜的浓度为20%,现在有甲溶液2千克,要将一定量的乙溶液与甲溶液混合,混合后所得溶液的蛋清浓度是蜂蜜浓度的2倍,问需要多少千克的乙溶液?()
A.2
B.1.5
C.1
D.0.5
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A.2
B.1.5
C.1
D.0.5
A.2
B.1.5
C.1
D.0.5
A.3% 6%
B.3% 4%
C.2% 6%
D.4% 6%
A.3% 6%
B.3% 4%
C.2% 6%
D.4% 6%
A.3%、6%
B.3%、4%
C.2%、6%
D.4%、6%
A、3% 6% B、3% 4% C、2% 6% D、4% 6%
A.3%,6%
B.3%,4%
C.2%,6%
D.4%,6%
A.20%
B.20.6%
C.21.2%
D.21.4%
A.5%
B.6%
C.8%
D.10%
A.5%
B.6%
C.8%
D.10%