一根钢筋混凝土污水管,n=0.014,i=0.003。当h/D=0.7时,管径为() 发布时间:2018-01-31 21:18 │ 来源:www.tikuol.com 题型:单项选择题 问题: 一根钢筋混凝土污水管,n=0.014,i=0.003。当h/D=0.7时,管径为()时流速最小。A.DN700B.DN600C.DN500D.DN400
题型:单项选择题 When I came ________ with the teenager hidden in the cave, I was surprised to find him ________ covered with dust. A.face-to-face; entirelyB.face to face; entire C.in face of; completely D.face to face; entirely 查看答案
题型:单项选择题 对于二维数组a[1..4,3..6],设每个元素占两个存储单元,若分别以行和列为主序存储,则元素a[3,4]相对于数组空间起始地址的偏移量分别是 (1) 和 (2) 。(1)()A.12B.14C.16D.18 查看答案