单项选择题
压缩机与驱动机组合The compressor is combined with the driving unit（）
A、燃气轮机输气机组是由燃气轮机驱动离心式压缩机Gas turbine transmission unit is driven by gas turbine centrifugal compressor
B、电动机输气机组是由电动机驱动离心式压缩机Motor gas transmission unit is driven by the motor centrifugal compressor
C、燃气发动机输气机组是以天然气作燃料的活塞式内燃机驱动。Gas engine transmission unit is driven by piston internal combustion engine fueled by natural gas
D、以上都不对
