电子签名
Click the Exhibit button. Given: ClassA a = new ClassA(); a.methodA(); What is the result? （） ["Compilation fails.","ClassC is displayed.","The code runs with no output.","An exception is thrown at runtime."]
料场规划应对主要料场和备用料场分别加以考虑，其中不属于主要料场的规划要求是（）。 ["质好","有利于常年开采","运距近","通常在淹没区外"]
Which of the following are valid bundled components of WebSphere Commerce Professional Edition？（） ["Lotus QuickPlace","Lotus SameTime","WebSphere Business Integrator","DB2","WebSphere Application Server"]
目前氢气系统优化主要有夹点法和数学规划法，在数学建模法中，氢气系统优化匹配要遵循（）。 ["优先考虑不同类型装置间氢源与氢阱的匹配","优先考虑自身系统的循环氢与氢阱的匹配，避免杂质对加氢的影响","优先考虑同一区域内氢源与氢阱的匹配，尽量减少管路连接费用","最后考虑不同类型装置间氢源与氢阱的匹配","优先考虑不同系统间循环氢与氢阱的匹配，避免杂质对加氢的影响"]
好氧堆肥
