问题 多项选择题

关于缺省路由的描述,以下哪些是不正确的()

A.该路由在数据转发时匹配长度为0

B.缺省路由是出现在路由表中的任何一条静态路由

C.当所有情况都相同的时候,缺省路由是用来转发数据包的那条最好的路由

D.缺省路由是用来转发那些路由表中没有明确表示该如何转发的数据包的路由

答案

参考答案:B, C

阅读理解与欣赏

阅读文段,回答问题。

一顿午餐

亲爱的孩子:

  我将于下周四进城来,你若能陪我去某处吃午饭就太好了。

  你的姨妈:诺拉

  诺拉姨妈是我母亲的姐姐,母亲生病时,她就把我当做子女照顾。她对我们要求很严,但从不做愚蠢的限制,只要我们不影响他人,对自己也没有危险,我们可以想做什么就做什么。

  我相信她相当富有,可是她却居住在乡村的农舍里,只有一个女佣照顾她,帮助她料理家务。一年中她进城一两次,买衣服或者是看表演。

  这次是在我上大学一年级时。我父亲有一个大家庭,我每月只有5镑钱做生活费,这本该够用了,可是我却时常感到拮据。有时同学邀我参加聚会,我只好说“行”,即使那意味着第二天我的午饭没有着落,也很难说“不”。实际上,收到姨妈的来信时,我只有20先令了,还得维持到月底呢,可是我无法拒绝呀!我知道一家合适的小饭店,在那儿可以一人花3先令吃顿午饭。那样的话,我就可以剩下14先令用到月底了。

  “哎,”姨妈说,“我们上哪儿去呢?午饭我从不吃得太多,一份就够了。咱们去一处好点儿的地方吧。”

  我领着她朝那家小饭店的方向走去,突然她指着街对面的那家“大皇宫”说:“那儿不是挺好吗?那家餐馆看上去不错。”

  “嗯,好吧,如果比起我们要去的地方您更喜欢的话。”我这样说了。

  我们去了那家“大皇宫”,她要了一盘最贵的法式炸鸡块,一大盘上好的鱼子酱,一杯葡萄酒,又要了奶油蛋糕。我付了帐,只剩3先令了。

  这时侍者又端来一些水果,她肯定该吃一些。当然,还得喝些咖啡,尤其是我们在吃了这么好的午饭之后。没有啦!甚至准备给侍者的1先令也没有了。

  账单拿来了:20先令。我在盘里放了20先令,没有侍者的小费。姨妈看了看钱,又看了看我。

  “那是你全部的钱?”她问。“是的,姨妈。”“你全用来招待我吃一顿美味的午饭?你真是太善良了——可实在很愚蠢。”

  “啊不,姨妈。”“你在大学学语言吗?”“对。”“在所有的语言当中,哪个字最难念?”“我不知道。”“就是‘不’这个字。随着你长大成人,你得学会说‘不’——即使是对女士。我早就知道你没有足够的钱上这家餐馆,可是我想让你得个教训,所以我不停地点最贵的东西,并且注意着你的表情——可怜的孩子!”她付了账,并给了我5镑钱作礼物。

  “天啊,”她说,“这顿午餐差点撑死你可怜的姨妈了,我通常的午饭只是一杯牛奶。”

1.文中说“我无法拒绝”的原因是什么?

_________________________________________________

2.诺拉姨妈说“太善良了”,“我”的善良表现在哪里?

_________________________________________________

3.诺拉姨妈又说“我”“实在很愚蠢”,你赞同她的看法吗?请简要谈谈你的理由。

_________________________________________________

4.你认为诺拉姨妈是个什么样的人?并从文中找出依据。

_________________________________________________

阅读理解

Of course, the main difference on the Chinese dinner table is chopsticks instead of knife and fork, but that’s only superficial. Besides, in decent restaurants, you can always ask for a pair of knife and fork, if you find the chopsticks not helpful enough. The real difference is that in the West, you have your own plate of food, while in China the dishes are placed on the table and everyone shares. If you are being treated to a formal dinner and particularly if the host thinks you’re in the country for the first time, he will do the best to give you a taste of many different types of dishes.

The meal usually begins with a set of at least four cold dishes, to be followed by the main courses of hot meat and vegetable dishes. Soup then will be served (unless in Guangdong style restaurants) to be followed by staple food ranging from rice, noodles to dumplings. If you wish to have your rice to go with other dishes, you should say so in good time, for most of the Chinese choose to have the staple food at last or have none of them at all.

Perhaps one of the things that surprise a western visitor most is that some of the Chinese hosts like to put food into the plates of their guests. In formal dinners, there are always “public” chopsticks and spoons for this purpose, but some hosts may use their own chopsticks. This is a sign of genuine friendship and politeness. It is always polite to eat the food. If you do not eat it, just leave the food in the plate.

   People in China tend to over-order food, for they will find it embarrassing if all the food is consumed. When you have had enough, just say so. Or you will always overeat!

小题1:What’s the main difference on dinner table between China and West is ___________.

A.On Chinese dinner table, chopsticks replace knife and fork.

B.The host will do the best to give you a taste of many different types of dishes.

C.You’re treated to a formal dinner for the first time.

D.You have your own plate of food in West while in China everyone shares the dishes.小题2:If you have a dinner in a Chinese home, in which order will the food be served in China?

a. a set of four cold dishes.

b. staple food such as rice, noodle or dumplings.

c. the main courses of hot meat and vegetable dishes.

d. serving soup.

A.acbd

B.cabd

C.acdb

D.cadb小题3:According to the passage, we can infer that ___________.

A.Chinese all think it impolite for guests to ask for a pair of knife and fork.

B.Chinese think it impolite for guests to leave food in the plate.

C.People in China tend to over-order food, for they will find it embarrassing if all the food is consumed.

D.Chinese think it polite to put food into the plated of the guests with their own chopsticks.小题4:The sentence, in passage 2, “you should say so in good time” means ______________.

A.you should say so happily

B.you’d better say so

C.you should say so early

D.you should say so kindly.小题5:The “public chopsticks and spoons” are used to ______.

A.show the politeness to the guests.

B.put food into the plates of their guests

C.share the food together

D.show the genuine friendship and politeness