问题
单项选择题
某列管式换热器，用水蒸气来预热空气，则管壁温度（）。
A、与水蒸汽温度接近
B、与空气温度接近
C、无法判断
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
某列管式换热器，用水蒸气来预热空气，则管壁温度（）。
A、与水蒸汽温度接近
B、与空气温度接近
C、无法判断
参考答案：A
Recently divorced and unemployed，I was on my way downtown to do the rounds of the employment offices.I had no umbrella，for my old one had ____，and I could not ____ another one. I sat down in the ____ and there against my seat was a(n) ___ silk umbrella with a silver handle.I had ____ seen anything so lovely.I examined the handle and saw a carved ___.The usual procedure would have been to ____ the umbrella to the conductor，but an idea ____ to me.I decided to take it with me and find the owner myself. I got off the bus in a downpour and ____ opened the umbrella to protect myself.Then I ____ a telephone book for the name on the umbrella.I called and a lady ____. Yes，she said ____，that was her umbrella，which her parents，now dead，had given her as a birthday present.But，she ____，it had been stolen ____ her doorstep a month before. She was so excited that I ____ I was looking for a job and went directly to her house.She took the umbrella，and her eyes were filled with ____.She wanted to give me a ____，but－though twenty dollars was all I had in the world－her happiness at regaining this ____ possession was beyond words and I believed accepting her money would have ____ something.We talked for a while and I left. A week later，I got a job as a sales manager ____.It might be my kindness that paid off.But who knows?
|