管理当局对会计帐项的认定包括什么？

A. By calculating the time offset from the GPS or atomic clock
By setting the router clock to the default value if the router can't connect to a time server
C. By setting all network devices to the correct time
D. By setting necessary time date in the timestamp informatio

A. 正确
B. 错误

A. 100
B. 110
C. 20
D. 10