99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

多項(xiàng)選擇題

You create a service application that monitors free space on a hard disk drive.  You must ensure that the service application runs in the background and monitors the free space every minute.
What should you do?()

A.Add code to the default constructor of the Service class to monitor the free space on the hard disk drive.
B.Add code to the OnStart method of the Service class to monitor the free space on the hard disk drive.
C.Add an instance of the System.Windows.Forms.Timer class to the Service class and configure it to fire every minute.
D.Add an instance of the System.Timers.Timer class to the Service class and configure it to fire every minute.
E.Add code to the OnStart method of the Service class to start the timer.
F.Add code to the Elapsed event handler of the timer to monitor the free space on the hard disk drive.
G.Add code to the Tick event handler of the timer to monitor the free space on the hard disk drive.

微信掃碼免費(fèi)搜題