()是最基本的LSA类型,所有运行OSPF的路由器都会生成这种LSA。A.Route

题型:单项选择题

问题:

()是最基本的LSA类型,所有运行OSPF的路由器都会生成这种LSA。

A.Router LSA

B.Netwrok LSA

C.Network Summary LSA

D.ASExternal LSA

考点:通信工程师C网电信认证C网电信认证题库
题型:单项选择题
在平行四边形ABCD中,AC与BD交于点O,E是线段CD的中点,若
AC
=
a
BD
=
b
,则
AE
=______.(用
a
b
表示)
题型:单项选择题

补全对话。

(Jack=J Susan=S)

S: It's Sara's birthday the day after tomorrow.  1. __________________?

J: Does she like reading? 2. __________________.

S: Well, she has had lots of books already.  Besides, her birthday present last year was also a book.

J: 3. __________________?

S: No, she doesn't like basketball, but she likes football.

J: Get her a football, then?

S:4. __________________?

J: I have no idea, about 20 dollars, maybe.

S: I have only 6 dollars.  5__________________?

J: I have eight.  Why not go and ask John if he would like to join us?

S: That's really a good idea.  Let's do that right away.

1. _________2. _________3. _________4. _________5. _________  ,

题型:单项选择题

下列传染病强制管理的是()

A.艾滋病

B.出血热

C.黑热病

D.肺结核

E.霍乱

题型:单项选择题

要求冷冻机油的凝点比制冷装置蒸发温度至少低()℃,闪点比制冷压缩机出口温度高()℃。

A、2/10~15

B、5/25~30

C、5/5~10

D、15/20~30

题型:单项选择题

上证50指数、上证80指数中的成分股是“蓝筹股”。( )

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