相关考题
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单项选择题
You work as aplication developer at Cer-Tech.com. You have recently created an aplication that includes the code shown below.You now need to invoke the GetFileContents method asynchronously.You have to ensure that the code you use to invoke the GetFileContents method will continue to process other user instructions， and displays the results as soon as the GetFileContents method finishes processing. What should you do？（）
A.A
B.B
C.C
D.D -
多项选择题
哪些类型的对象从 MemberInfo类检索？（）
A.FieldInfo class
B.MethodInfo class
C.Assembly class
D.Type class -
单项选择题
您需要编写可接受日期时间参数并返回一个布尔值，多路广播的委托。您应该使用哪个代码段？（）
A.public delegate int PowerDeviceOn(bool, DateTime);
B.public delegate bool PowerDeviceOn(Object, EventArgs);
C.public delegate void PowerDeviceOn(DateTime);
D.public delegate bool PowerDeviceOn(DateTime);
