提高系统有效度的途径有哪些？
You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. You add a ListBox control to the application. The ListBox control is data-bound to an instance of a custom collection class of the Product objects named ProductList. You need to ensure that changes to ProductList are automatically reflected in the ListBox control. What should you do? （） [" Implement the INotifyPropertyChanged interface in the Product class."," Implement the IQueryable<Product> interface in the ProductList class."," Extend the DependencyObject class in the Product class."," Extend the ObservableCollection<Product> class in the ProductList class."]
社会再生产的环节包括以下哪几个？（） ["科技","生产","分配","交换"]
在一个存储过程定义的AS关键字前可以定义该过程的（），AS关键字之后为该过程的（）。
《筹办洋务始末》载，恭亲王奕忻上奏朝廷，指出外国人“于中国书籍，潜心探索，往往辩论事件，援据中国典制律例相难”，因此，“（今）欲借彼国事例以破其说，无如外国条例”。这一建议体现了他（）。 ["培养翻译人才的愿望","师夷制夷的外交设想","重振清朝国力的决心","中体西用的指导思想"]
产酶动力学
