to aggregate routes learned from the ABR
to lower the cost of routes advertised by the ABR
to connect a non-contiguous area to the backbone
to decrease the size of the link-state database in that area
第1题：
I would like to make an appointment for the meeting. Which day would you prefer, Tuesday or Thursday?()
A. At any time
B. You make the time
C. Well, either time will do
第2题：
()tonight, why not drop in and play chess with me?
A.Since you are free
B.For you are free
C.Because you are free
D.If you would be free
第3题：
If I hadn’t listened to you, I would _have made_ (make) such a silly mistake.
第4题：
Why would you like to work for us?
你为什么希望到我们公司工作？
第5题：
A.Would you like
B.What about
C.Why don’t you
第6题：
Would you like to _____?
A、take bath
B、take a bath
C、make bathe
D、make a bathe
第7题：
A.Would you like
B.What about
C.Why don’t you
第8题：
—Would you mind closing the window? It is windy outside.\n—________________
A.Not at all.
B.Sure, go ahead.
C.Why not?
D.Yes, I would.
第9题：
第10题：
An OSPF non-backbone area allows external routes to be flooded within the area. These externalroutes are propagated into other areas. However, external routes from other areas are not allowed to enter this area. Which type of OSPF area does this describe?（）
A. stub area
B. transit area
C. border area
D. not-so-stubby area