皮带机头的防灭火用砂的体积不得少于()立方。A.0.1 B.0.2 C.0.3 发布时间:2017-06-24 04:08 │ 来源:www.tikuol.com 题型:单项选择题 问题: 皮带机头的防灭火用砂的体积不得少于()立方。A.0.1B.0.2C.0.3
题型:单项选择题 Even when I am able to get in touch with the manager and tell him your request, I cannot __ he will reply.A.stressB.appealC.informD.guarantee 查看答案