阅读理解

    We use the Internet for many things: business, shopping, writing letters, talking to people, finding information and so on. In recent years, a new kind of English has grown on the Internet. There's no real word for it yet, so we'll call it e-talk.

    People don't like typing too much. To save time, they turn phrases into a few letters (called acronyms). Acronyms are often used in chat rooms(聊天室). Some of them are:

    BTW (by the way)                 BRB (be right back)

    LOL (laughing out loud)            IMO (in my opinion)

    People also use many abbreviations. They are shortened forms of words. Some common abbreviations are:

    info (information)                  puter (computer)

    pic (picture)                       sec (second)

    We usually don't see people when we communicate(交流) on the Net, so people have new ways to show feelings. Most people use their keyboards to draw "feelings", such as:

:-) (happy)    ;-)  (joking)   :-(  (sad)       :-O  (surprised)

    These days, many forums (论坛) have picture feelings. For example:

    There are even whole new words, like "newbies"(someone who is new on a chat board or forum). When you write something bad about someone else, it's called "flaming" the person.

    It takes time for people to get used to(适应) e-talk. Also, different groups on the Net have their own special ways of communicating. Newbies sometimes have to ask other people what they mean. As the Internet grows, e-talk will continue to grow and change.

Choose the best answer:

阅读下面一则文言文，完成下列各题。
    项梁至定陶，再破秦军，项羽等又斩李由，益轻秦，有骄色。宋义谏项梁日：“战胜而将骄卒惰者败。今卒少惰矣，秦兵日益，臣为君畏之。”项梁弗听。宋义使于齐。道遇齐使者高陵君显，曰：“公将见武信君乎？臣论武信君军必败。公徐行即免死，疾行则及祸。”秦果悉起兵益章邯，击楚军，大破之定陶，项梁死。章邯令王离、涉间围巨鹿，章邯军其南，筑甬道而输之粟。
    高陵君显见楚王日：“宋义论武信君之军必败，军果败。兵未战而先见败征，此可谓知兵矣。”王乃置宋义为上将军，项羽为次将，范增为末将。诸将皆属宋义，号为卿子冠军。行至安阳，留四十六日不进。项羽曰：“吾闻秦军围赵王巨鹿，疾引兵渡河，楚击其外，赵应其内，破秦军必矣。”宋义曰：“不然。今秦攻赵，战胜则兵罢，我承其敝；不胜，则我引兵鼓行而西，必举秦矣。”乃遣其子宋襄相齐，身送之至无盐，饮酒高会。天寒大雨，士卒冻饥。项羽日：“将戮力而攻秦，久留不行。今岁饥民贫，士卒食芋菽，军无见粮，乃饮酒高会，不引兵渡河因赵食，与赵并力攻秦，乃曰：‘承其敝’．夫强秦攻赵，必举。赵举而秦强，何敝之承！今不恤士卒而徇其私，非社稷之臣！”后项羽斩宋义头，出令军中曰：“宋义与齐谋反楚，楚王阴令羽诛之。”当是时，诸将皆慑服。乃相与共立羽为假上将军。使人杀宋义子。怀王因使项羽为上将军。
    项羽杀卿子冠军，威震楚国，名闻诸侯。将救巨鹿。项羽乃悉引兵渡河，皆沉船，破釜甑，烧庐舍，持三日粮，   以示士卒必死，无一还心。与秦军遇，九战，大破之，虏王离。涉间不降楚，自烧杀。当是时，楚兵冠诸侯。诸侯军救巨鹿者十余壁，莫敢纵兵。及楚击秦诸将皆从壁上观楚兵无不以一当十呼声动天诸侯军人人惴恐。于是已破秦军，项羽召见诸侯将，入辕门 ， 无不膝行而前。项羽始为诸侯上将军，诸侯皆属焉。
（有删改）

某人的血浆分别与不同血型的人的红细胞配合，结果其中三人的红细胞发生凝集，由此可推知该人的血型是（　　）

设A（n）表示正整数n的个位数，a_n=A（n²）﹣A（n），A为数列{a_n}的前202项和，函数f（x）=e^x﹣e+1，若函数g（x）满足fg（x）﹣ $\frac{Ax-1}{A^x}$ =1，且b_n=g（n）（n∈N^*），则数列{b_n}的前n项和为____．

当同学画出一个人体口腔上皮细胞，在画细胞核时，应该用疏密不同的   表示。