【多选题】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 shou...
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.
【判断题】企业生产车间在一定时期内领用原材料多次使用同一张“限额领料单”,该领料单属于累计凭证。( )(2019年)
【简答题】1个丙酮酸经过三羧酸循环产生几( )个CO2,( )个ATP,( )个NADH,( )FADH2。
【单选题】Is a morning call or wake-up call service free or charged?
B.
Depends on the service time.
D.
Free but you need to give tip to the operator.
【单选题】It can be inferred from the passage that______.
A.
the new e-mail service is only free for the Sprint customers
B.
the new e-mail service is free for all the U. S. customers
C.
all cellphone customers must pay for the new e-mail service
D.
the new e-mail service is only for the Sprint customers
【判断题】(2019年)企业生产车间在一定时期内领用原材料多次使用同一张限额领料单,属于累计凭证。
【简答题】The White House Visitor Center provides free drinks but not food service.
【单选题】Free medical service is _____ to all the members of the factory.