作文

    人生路上，有一抹微笑，就像灿烂的阳光，温暖你的灵魂；就像燃烧的火炬，点燃你的希望；就像丝丝灵光，启迪你的智慧；就像无垠的矿藏，传递给你无穷的正能量……

请以“微笑”为题，写一篇文章。

要求：①文体不限，诗歌、戏剧除外。

      ②说真话，抒真情，忌抄袭。

     ③文中请不要使用真实的人名、校名。

     ④书写工整，不少于600字。

在学生演讲比赛中，六名选手的成绩（单位：分）分别为：80、85、86、88、90、93，则这组数据的中位数为____ 分．

E

    Artificial intelligence（人工智能）, or AI in short, is the science of giving computers and machines ability to think and work like humans. AI scientists and engineers have made a lot of cool technologies.

    AI is rapidly catching up with the human ability to read faces. As a result, facial recognition（识别）is used a lot in the world. Chinese police use this technology to identify criminals（罪犯）.Once they caught a criminal when he attended a concert. It also checks the ID of ride-hailing（网约车）drivers and lets people pay for things with a smile.

    AI is also used in self-driving cars, which are believed to be the future of driving. Most drivers may wave or nod at passers-by to let them cross the street, but self-driving cars don't have this ability. Carmakers are testing a light signal system to help them "speak" to humans. The system can show what self-driving cars will do. For example, if a driverless car is yielding（让路）, it will flash two white lights side to side. A rapidly flashing light tells passers-by that the car is about to speed up.

    Service Robots also show you know powerful AI is. Imagine this—you come back home from school and your robot housekeeper is waiting for you at the door. After dinner, he teaches you to play the piano, just like a real music teacher. Such thoughts will soon happen in the real world. In the future, more and more service robots will become good home helpers.

    AI is so powerful that it can help human beings and even replace us in many jobs.

阅读下面文言文，回答问题

    彭城景思王浟，字子深，神武第五子也。博士韩毅教浟书，见浟笔迹未工，戏浟曰：“五郎书画如此，忽为常侍开国，今日后，宜更用心!”浟正色答曰：“昔甘罗为秦相，未闻能书。凡人唯论才具何如，岂必勤勤笔迹。博士当今能者，何为不作三公?”时年盖八岁矣。毅甚惭。

    武定六年，出为沧州刺史。为政严察，部内肃然。守令参佐，下及胥吏，行游往来，皆自赍粮食。浟纤介知人间事，有隰沃县主簿张达，尝诣州，夜投人舍，食鸡羹，浟察知之。守令毕集，浟对众曰：“食鸡羹何不还他价直也?”达即伏罪，合境号为神明。又有一人从幽州来，驴驮鹿脯。至沧州界，脚痛行迟，偶会一人为伴，遂盗驴及脯去。明旦告州，浟乃令左右及府僚吏分市鹿脯，不限其价。其主见脯识之，推获盗者。转都督、定州刺史。时有人被盗黑牛，背上有白毛。长史韦道建谓中从事魏道胜曰：“使君在沧州日，禽奸如神。若捉得此贼，定神矣。”浟乃诈为上符，市牛皮，倍酬价直。使牛主认之，因获其盗。建等叹服。又有老母姓王，孤独，种菜三亩，数被偷。浟乃令人密往书菜叶为字，明日，市中看菜叶有字，获贼。尔后境内无盗，政化为当时第一。

    天保初，封彭城王。四年，征为侍中，人吏送别悲号。有老公数百人，相率具馔白浟曰：“自殿下至来五载，人不识吏，吏不欺人。百姓有识已来，始逢今化。殿下唯饮此乡水，未食百姓食，聊献疏薄。”浟重其意，为食一口。七年，转司州牧，选从事皆取文才士明剖断者，当时称为美选。州旧案五百余，浟未期悉断尽。

    河清三年三月，群盗田子礼等数十人谋劫浟为主诈称使者径向浟第至内室称敕牵浟上马，临以白刃，欲引向南殿。浟大呼不从，遂遇害，时年三十二，朝野痛惜焉。

（节选自《北齐书 卷十》有删节）

“任何生物如果能以任何方式发生纵然微小但有利于自己的变异，它在复杂的而且时代变化的生活条件下，就会获得较好的生存机会，因而它就自然地被选择了．”提出这一理论的科学家是（　　）