PVST+reduces the CPU cycles for all the switches in the network
PVST+automatically selects the root bridge location,to provide optimiz…
PVST+allow the root switch location to be optimized per vlan.
PVST+supports Layer 3 load balancing without loops.
第1题：
No one can be sure()in a million years.
A、 what man will look like
B、 what will man took like
C、 man will look like what
第2题：
A. easier customer sales cycle
B. increased margins
C. fewer customer call backs
D. available financing options
第3题：
Robots have one advantage over humans-they never ____ lack of sleep or food.
A.benefit from
B.suffer from
C.stem from
D.result from
第4题：
What is a benefit of implementing a Cisco End-to-End Solution?（）
第5题：
There is also the additional reason which we mentioned in the argument for one benefit for all one-parent families, that a modern social security service must concentrate on meeting needs irrespective of the cause behind such needs.
本题考核知识点：同位语、定语从句的翻译
该句子的主干成分是there be 结构there is also the reason，可直接译为“还有一个理由”。that引导的句子为reason的同位语，翻译时可以直接用一个“即”字引导，紧跟在reason后面。which 引导定语从句，修饰reason一词，翻译时按照汉语习惯置于名词的前面。
词汇：additional“额外的，附加的”，one-parent family“单亲家庭”，concentrate on“集中于，专注于”，irrespective of“不顾……的；不考虑……的；不论……的”。
译文：此外，还有一个我们在讨论单亲家庭救济问题时所提及的理由，即一个现代的社会保障服务必须专注于满足需求，不管这些需求的背后有何原因。
第6题：
to make sure that the other speaker is paying attention to what you are saying, you need to make what you say sound more interesting. in the following expressions, which one can make one's saying sound more interesting______.
A、You'll never believe this, but…
B、What do you mean?
C、Did you hear what I said?
D、What do you think?
第7题：
A.Network, Application & User Monitoring
B.Network Planning
C.Security Analysis
D.Accounting/Billing
第8题：
A、to not punished
B、to not be punished
C、not to be punished
D、not be punished
第9题：
第10题：
What is one benefit of the Cisco anti-X defense strategy？（）