以下哪个工具可以不受图层调板上透明锁定的影响，并且在使用后可以自动将图像的背景层转换为普通层？（） ["Clone Stamp tool（克隆图章工具）","Eraser Tool（橡皮擦工具）","Background Eraser Tool（背景橡皮擦工具）","Magic Eraser Tool（魔术橡皮擦工具）"]
鸦片战争时期清政府与西方国家签订的不平等条约有（）。 ["《南京条约》","《虎门条约》","《黄埔条约》","《中法条约》","《马关条约》"]
模块化的外市电引入费用具有（）。 ["确定性","不确定性","规范性"]
什么是行政问责？
Your 15-meter tug is underway and crossing a deep and narrow channel. A large container vessel is off your port bow on a steady bearing. Which statement is TRUE concerning this situation? （）. ["You should maintain course and speed","The container vessel is the stand-on as it is the larger vessel","You are not to impede the safe passage of the container vessel in the channel","None of the above"]
四通电磁阀常见什么故障，如何处理？
