【判断题】城市气体消耗多时,向城市的供气量大于干线的流量,不够的气体由末段中积存的气体来弥补,使末段压力下降。If gas consumption is too long, the gas supply to the city is larger than the flow of the main road, and the insufficient gas is made up by the ...
【简答题】The Bentley buyer wants an understated heirloom that he or she can pass down through the generations; over 80% of all Bentleys ever made are still on the road today. The Phantom buyer, on the other ha...