稳定塔底热源是分馏一中,解吸塔底热源是()蒸汽。 发布时间:2017-10-01 13:21 │ 来源:www.tikuol.com 题型:填空题 问题: 稳定塔底热源是分馏一中,解吸塔底热源是()蒸汽。
题型:填空题 — Has Donnie finished reading the novel? — Not yet. There ________ still ________ of it left.A.is; three-fourths B.are; three-fourthC.is; third-fourthsD.are; three-fourths 查看答案