根据规程规定,极不稳定煤层的观测点间距为()米。A.<10 B.10~25 C.25 发布时间:2019-10-25 07:07 │ 来源:www.tikuol.com 题型:单项选择题 问题: 根据规程规定,极不稳定煤层的观测点间距为()米。A.<10B.10~25C.25~50D.﹥100
题型:单项选择题 The main reason why Apple’s products always manage to capture the imagination of people worldwide is their attention to _____. Each and every part of an Apple product is perfect in its body. A.detailsB.functionsC.featuresD.trends 查看答案