说明FRANCOTOSI燃煤锅炉中间再热器的管子外径、受热面积和材质。 发布时间:2019-07-11 17:44 │ 来源:www.tikuol.com 题型:问答题 简答题 问题: 说明FRANCOTOSI燃煤锅炉中间再热器的管子外径、受热面积和材质。
题型:问答题 简答题 —I'm sorry to have shouted at you. I didn't mean to be so rude. —You were very angry. Anyhow, __________. [ ]A. you are welcome B. I'm sorry about thatC. it doesn't matter D. that's right 查看答案
题型:问答题 简答题 如图所示,水平地面上有p、Q两点,A点和B点分别在P点和Q点的正上方,距离地面高度分别为h1和h2.某时刻在A点以速度v1水平抛出一小球,经过一段时间后又从B点以速度v2水平抛出另一球,结果两球同时落在P、Q连线上的O点,则有( )A.PQ:OQ=v1h1:v2h2B.PQ:OQ=v1h21:v2h22C.PO:OQ=v1h1:v2h2D.PO:OQ=v1h2:v2h1 查看答案