The damage was caused（）the stevedores. ["with","from","on","by"]
天然气管属于典型的（）过程。 ["等温","绝热","可逆绝热","等熵"]
What is the term given to the process of breaking up fuel oil into very fine particles for better combustion?（） ["Settling","Straining","Spraying","Atomizing"]
所有Excel 2003新建的工作簿中包含的工作表数目都是三个。
在低温分离的流程中，天然气流被冷却到极低的温度（低于－38℃）把（）乙烷和乙烷以上的成分冷凝成液体然后脱除。 ["60％－70％","70％－85％","80％－95％","90％－95％"]
简述销售渠道设计的原则。
