near-end crosstalk(NEXT)
middle open-end crosstalk(MOEXT)
power sum near-end crosstalk(PSNEXT)
jitterry crosstalk(JEXT)
far end crosstalk(FEXT)
第1题：
With reference to a two-ram actuating mechanism, which one of the following statement is FALSE?
A.The rams work inside cylinders.
B.The cylinders have glands sealing their open ends.
C.The rams are connected to a cross-head
D.The cross-head is mounted on the rudder stock
第2题：
A. near-end crosstalk(NEXT)
B. middle open-end crosstalk(MOEXT)
C. power sum near-end crosstalk(PSNEXT)
D. jitterry crosstalk(JEXT)
E. far end crosstalk(FEXT)
第3题：
To which of the following statements would McWhorter most likely agree?
[A] Logical thinking is not necessarily related to the way we talk.
[B] Black English can be more expressive than standard English.
[C] Non-standard varieties of human language are just as entertaining.
[D] Of all the varieties, standard English can best convey complex ideas.
第4题：
Which of the following network hardware allows the MOST network traffic collisions?（）
第5题：
Which three of the following basic network services are provided by the Cisco IOS?（）
第6题：
A.WAP
B.Hub
C.Switch
D.Router
第7题：
Which one of the following varieties of NAT utilizes different ports to map multiple IP addresses to a single globally registered IP address?（）
第8题：
A. Bingo.
B. Rearranging and describing.
C. Word chain.
D. Cross-word puzzle.
第9题：
Which of the following are actual varieties of network crosstalk?（）
第10题：
Which of the following security features are enabled by default after creating an instance？（）