用95%和45%的乙醇配制75%的乙醇溶液500ml,应取95%和45%的乙醇各多少体积A:250ml,250ml B:260ml,240ml C:300ml,

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问题 用95%和45%的乙醇配制75%的乙醇溶液500ml,应取95%和45%的乙醇各多少体积

选项 A:250ml,250ml
B:260ml,240ml
C:300ml,200ml
D:245ml,255ml
E:350ml,150ml

答案C

解析
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