单项选择题

【A1/A2型题】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()

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

题目列表

你可能感兴趣的试题

微信扫码免费搜题