You are implementing an ASP.NET application that will use session state in out-of-proc mode. You add the following code. You need to add an attribute to the Person class to ensure that you can save an instance to session state. Which attribute should you use?（） ["Bindable","DataObject","Serializable","DataContract"]
常用的20号机械油，20表示的是（）粘度 ["运动","恩氏","动力","非标准"]
《绿色建筑评价标准》GB/T50378-2014规定：内区采光系数满足采光要求的面积达到（）。 ["A.50% ","B.60% ","C.70% ","D.80%"]
教育科学研究的创造性包括两方面的含义：其一是（）；其二是（）。
在实际的逻辑覆盖测试中，一般以（）为主设计测试用例。 ["条件覆盖","判定覆盖","条件组合覆盖","路径覆盖"]
批单
