问题 多项选择题

如果关闭某个侦听器,那么对通过这个侦听器连接的会话有何影响(选择一个最佳答案)?

A.如果配置了故障转移,那么这些会话仍然会持续

B.不会产生任何影响

C.在重新启动该侦听器之前,这些会话会被挂起

D.如果某个侦听器正在使用中,那么就无法关闭这个侦听器

E.这些会话会因为出错而中断

答案

参考答案:B

解析:在建立连接时,侦听器是必需的,但维护连接并不需要侦听器。A、C、D和E是错误的,因为它们认为己建立的会话要想继续,就必需使用侦听器。

阅读理解

阅读理解。

     The other day, my friend Jane was invited to a 40th birthday party. The time printed on the invitation was

7:30 pm. Jane went off with her husband, expecting a merry evening of wine, food, and song.

     By 9:45 pm, everybody was having great fun, but no food had appeared. Jane and David were restless.

Other guests began whispering that they, too, were starving. But no one wanted to leave, just in case some

food was about to appear. By 11:00 pm, there was still no food, and everyone was completely off their heads.

Jane and David left hungry and angry.

     Their experience suggests that the words on the printed invitations need to be made clearer. Everyone reads

and understands the invitations differently. Most of us would agree that 6:30-8:30 pm means drinks only, go

out to dinner afterwards: 8:00 pm or 8:30 pm means possible dinner, but 9:30 pm and any time thereafter means

no food, eat beforehand, to up late.

     But this is not always that case. If asked to a students' party at 6:30 pm, it is normal for guests not to appear

before midnight, if at all, and no one cares. Being the first to arrive-looking eager-is social death. When my

mother is asked to a party for 6:30 pm, she likes to be there, if not on time, then no later than seven. My age

group (late thirties) fall somewhere between the two, but because we still think we're young, we're probably

closer to student-time than grownup time.

     The accepted custom at present is confusing (混乱的), sometimes annoying, and it often means you may

go home, but it does lend every part that precious element (成分) of surprise.

1. The underlined words "off their heads" probably mean _____. [ ]

A. tired

B. crazy

C. curious

D. hopeless

2. Jane and David's story is used to show that _____. [ ]

A. party-goers usually get hungry at parties

B. party invitations can be confusing

C. people should ask for food at parties

D. birthday parties for middle-aged people are dull

3. For some young people, arriving on time for a students' party will probably be considered _____. [ ]

A. very difficult

B. particularly thoughtful

C. friendly and polite

D. socially unacceptable

单项选择题