Which of the following is a feature of a unit of work?（）
第1题：
The person entitled to make a claim for the loss of goods may ______ them as lost if they have not been delivered within 60 consecutive days following the expiry of the time for delivery．
A.treat
B.cheat
C.teat
D.feat
第2题：
第3题：
Which of the following is not an AVL tree?
A．
B．
C．
D．
第4题：
Which of the following commands will be run at a command prompt to determine which WindowsOS is running on the computer?（）
第5题：
Which of the following is BEST for providing network security?（）
第6题：
第7题：
Which of the following is a performance optimization technology?（）
第8题：
It was quite a feat to move that piano by yourself.()
第9题：
Which of the following utilities are used to choose which programs run at startup？ （）
第10题：
MPLS TE FR
MPLS VPN
BFD
RSVP
VPLS
SNMP