确定最优回次钻程时间的依据是() A.岩心管已打满; B.回次钻速达最大值; C.机 发布时间:2019-01-07 19:13 │ 来源:www.tikuol.com 题型:单项选择题 问题: 确定最优回次钻程时间的依据是()A.岩心管已打满;B.回次钻速达最大值;C.机械钻速达最大值。
题型:单项选择题 ---Will you go to Hangzhou next week?---Yes. It’s not my_____ time to go there, ______ I still feel excited.A.first , soB.first, butC.one, soD.one, so 查看答案