If the guest requests express service, inform him or her of the ( ). A: tip B: extra charge C: laundry bag D: laundry list

绘制系统零极点分布图的Matlab命令为（ ）。 A: zpmap ( sys ) B: zpkmap ( sys ) C: pzmap ( sys ) D: pzkmap ( sys )

在以下windows文件路径中（）采用了相对路径。 A: win7\sys B: C:\win7\sys C: \win7\sys D: D:\win7\sys

Do you know who is ________ of the company now? A: on charge B: on the charge C: in charge D: in the charge

1. Who is _________ the administration of your company? A. in the charge of B. in charge of C. in charge with D. in the charge with

下列文件名正确的是（ ）。 A: sys te123.bat B: sys?te.bat C: sys<>te.bat D: sys te*.bat

12. The new position puts him _____ of the computer systems throughout the company. A: off charge B: of charge C: on charge D: in charge

I ________ the Marketing & Sales Department of ABC Company. A: take charge of B: am charge of C: take in charge of D: am in charge

【单选题】在Windows 7中,下列正确的文件名是()。 A. Sys tem123.bat B. sys?tem.bat C. sys<>tem.bat D. sys1︱tem123

防止系统对ping请求做出回应，正确的命令是：（）。 A: echo0>/proc/sys/net/ipv4/icmp_ehco_ignore_all B: echo0>/proc/sys/net/ipv4/tcp_syncookies C: echo1>/proc/sys/net/ipv4/icmp_echo_ignore_all D: echo1>/proc/sys/net/ipv4/tcp_syncookies