利用行列式解关于x，y的方程组 ．

阅读下面这首唐诗，完成下面小题。

宿桐庐江寄广陵旧游^①

孟浩然

山暝听猿愁，沧江急夜流。

风鸣两岸叶，月照一孤舟。

建德非吾土，维扬忆旧游。

还将两行泪，遥寄海西头。

（注释）①本诗是作者长安求仕不第后漫游吴越时所作。桐庐江即桐江，在今浙江省桐庐县境内，诗中的建德也指桐庐江。广陵即扬州，诗中的维扬、海西头均指扬州。

同温同压下，同体积的氨气（NH₃）和硫化氢气体（H₂S）的质量比为；同温同压下，同质量的氨气和硫化氢气体的体积比为；若二者氢原子数相等，它们的体积比为．

同温同压下，同体积的甲乙两种气体的质量比是17：14．若乙气体是CO，则甲气体是（   ）

阅读理解

    When Lew Alcindor was 13, and obviously still growing, a group of schools began offering him scholarships (奖学金). The Alcindors decided to send their only child to Power Memorial Academy, a small school on Manhattan's West Side.

    At Power, Alcindor came under the control of Coach Jack Donohue, a strict young man who already gained his fame as one of the best coaches in the city. Donohue brought Alcindor along slowly. As a first-year student, the boy was not able to do much but wave his long skinny arms and shoot a basket now and then. But by the second year, when he was 15 years old and nearly 7 feet tall, Alcindor was quick and skillful enough to make the high school All-American team and to lead Power to an undefeated season.

    From then on he simply got better. Some rival coaches(对方教练) used to take their teams quickly away from the floor before Power warmed up so that their players would not see him any sooner than they had to. Wearing size 16 D shoes and sucking a lollipop(棒棒糖), Alcindor would loosen up by starting his leaping lay-ups(擦板球). Then he would casually shoot the ball with either hand, to the delight of the fans.

    When reporters and photographers began to follow Alcindor closely, Donohue protected his boy firmly. He simply ordered Lew to talk to no member of the press, and this suited Lew fine. He was not comfortable talking to grown-ups, perhaps because he towered over them. Discouraged photographers began following him in secret as though he were an easily-frightened giraffe. Once after ducking into a subway to escape, Alcindor told a friend that it was all becoming like policemen and robbers. "People want you not for yourself," Donohue warned him, "but because you're a basketball player. Don't forget that."

已知线性方程组的增广矩阵为 ， 则其线性方程组为 ．

阅读下面的文字，完成问题。

目前来看，良渚文明是我们所能确证的中国最早的文明。良渚古城有皇城、内城、外城三重结构，有宫殿与王陵，有城墙与护城河，有城内的水路交通体系，有城外的水利系统，作为国都，其规格已    。可以说，良渚古城是中华五千年文明史的___圣地。(    )。其实，只要打开思路，我们就可以发现，通行的文明标准不应成为判断一种文化是否进入文明社会的生硬公式。青铜器在文明社会中承载着礼制规范的意义，就良渚文化来说是体现在玉器上。与以往人们喜爱的装饰玉器不同，良渚人的玉器不仅仅是美观的需要。这些玉器以玉琼为代表组成了玉礼器系统，或象征身份，或象征权力，或象征财富。文字是记录语言、传承思想文化的工具，在良渚文化中，虽然尚未发现文字系统，但那些镌刻在玉礼器上的标识，也极大程度地统一着人们的思想，而大型建筑工事所     出的良渚社会超强的组织管理能力，也遗露出当时一定存在着某种与文字相当的信息传递方式。因此，良渚古城的发现，使良渚文明的确立      。

One should take ______ of his strengths to make up for his weaknesses.

When I passed my school I (经常看看) my teachers who taught me 5 years ago. (词数不限)

阅读下面的文字，完成各题。

“许多年之后，面对行刑队，奥雷里亚诺·布恩迪亚上校将会回想起，他父亲带他去见识冰块的那个遥远的下午。”——《百年孤独》

马尔克斯称，《百年孤独》构思了十五年，这十五年他都不知道怎么写第一句话。毫无疑问，构思一部小说的开头特别需要勇气。马尔克斯的勇气，是给了一个时非其时、地非其地的新解。他站在一个不确定的现在，同时拢住了过去与未来，他不必圈二块地，指几个人，要他们干什么干什么，而是一尾鱼一样灵巧地游进了时空宇宙，让叙述获得了新的自由。譬如吴清源的三三星天元名局，第一手拍在“三三”，就能知发新布局的大地震。

这是《百年孤独》开头的伟大之处。如果你只是在被动地、无意识地接收文本内容，也许很难体会到马尔克斯用这句话解决了哪些关键问题。只有当你动笔写作，成为时空的创造者的时候，你才会感觉到它包含了太多重要的命题。

传说莫言早年拿到《百年孤独》，只读了第一页就嚷了出来：“我知道怎么写小说了！”那是作家遇见作家时的剧震。小说是建筑成本最低的城市、文明和宇宙，是物美价廉的梦，作家的想象力不受画工、演员、成本的限制。当你说“要有光”（出自《圣经》“神说：‘要有光。’就有了光。”），你根本不必处理明暗，不用打光，不用取景，你说光就是光。

已知矩阵 ，且二阶矩阵M满足AM=B ， 求M的特征值及属于各特征值的一个特征向量.

阅读理解

    About 70 scientists were working on a very busy project. All of them felt really desperate due to the pressure of work and the demands of their boss but everyone was loyal to him and did not think of quitting their job.

    One day, one scientist came to his boss and told him, “Sir, I've promised to take my children to the exhibition going on in our township so I want to leave at 5:30 p. m.” His boss replied, “OK. You're permitted to leave the office early today.”

    The scientist started working. He continued his work after lunch. As usual, he got involved to such an extent that he looked at his watch only when he felt he was close to completion. The time was 8:30 p. m. suddenly he remembered his promise to the children. He looked for his boss but he was not there. Having told him in the morning himself, he closed everything and left for home. Deep within himself, he was feeling guilty for having disappointed his children. He reached home. The children were not there. His wife alone was sitting in the hall and reading magazines. The situation was explosive; any talk would boomerang on him. His wife asked him, “Would you like to have coffee or shall I straight away serve dinner if you are hungry?” The man replied, “If you would like to have coffee, I too will have but what about the children?” His wife replied, “You don't know? Your boss came here at 5:15 p. m. and has taken them to the exhibition.”

    What had really happened was the boss who gave him permission was observing him working seriously at 5:00 p. m. He thought to himself: this person will not leave the work, but he's promised to take his children to the exhibition. So he took the lead in taking them there. The boss does not have to do it every time. But once it's done, loyalty is established.

    That is why all the scientists at Thumba continued to work under their boss even though the stress was extraordinarily huge. By the way, can you boldly guess who the boss was? He was none other than the mastermind behind India's successful nuclear weapons program, Dr. APJ Abdul Kalam, former president of India.

N_A表示阿伏加德罗常数的值，下列叙述正确的是（    ）

短文写作。

请根据以下提示，并结合具体事例，用英语写一篇120词左右的短文。

“如果你想强壮，你就跑步吧；如果你想健美，你就跑步吧；如果你想聪明，你就跑步吧。”这是古希腊2500年前的三句名言。请写一篇不少于120词的英语短文，谈谈体育运动的利与弊。

下列化学用语只能用来表示一种微粒的是（   ）

设 N_A 表示阿伏加德罗常数的值，下列说法中正确的是（    ）

同温同压下，下列有关同体积的H₂和CO的物理量说法正确的是（   ）

矩阵M =对应的变换是(    )

下列说法中，正确的是：（   ）

已知矩阵A= ， 矩阵B= ， 计算：AB= ．