以下是关于国际货物多式联运的国际公约有哪些？（） ["《联合国国际货物多式联运公约》","《华沙公约》","《瓦达拉哈拉公约》","《联合国国际贸易和发展会议\/国际商会多式联运单证规则》"] UMS stands for（）. ["ultra much space","universal medium system","unit machined space","unattended machinery space"] You are carrying triethylamine，methyl methacrylate and isoprene in your multiple-product tanker. Which of the following statements is true? （） ["Isoprene may be carried in a cargo tank adjacent to either of the other two cargoes","Methyl methacrylate may not be carried in a tank adjacent to a pump room","Methyl methacrylate must usually be heated to maintain its stability","Portable thermometers are not permitted to be used to take the cargo temperature of triethylamine"] 宪法的对经济制度的作用有（） ["建立和确认作用","保护和促进作用","组织规范国家权力的运行","规定国家的民主制度"] Oil mist detectors are usually used on board to detect oil mist density within （）. ["the engine crankcase","the engine scavenge boxes","drain tanks","fuel tank"] 名片是与人相识的一种高雅且简便的方式。名片的保存应注意（）