1919年，法国人路易·苏和（ ）合办了“苏与玛尔公司”，主要从事家具和室内设计，他们的奢华风格代表了20年代法国的装饰艺术特征。

A、通路
B、通道
C、再生段
D、复用段

A、沿程温降速度较输油管快The temperature drop speed along the pipeline is faster
B、下游管道温度低于环境温度The downstream pipeline temperature is lower than the ambient temperature
C、沿程温降速度较输油管慢The temperature drop along the pipeline is slower than that along the pipeline
D、下游管道温度高于环境温度The downstream pipeline temperature is higher than the ambient temperature