The Iron Lady

    Margaret Thatcher, known as the Iron Lady, was one of the toughest political women in the world.

    As the daughter of a businessman and mayor of Grantham, Margaret was educated at a very famous grammar school. ____ Upon graduation, she worked for four years as a research chemist. She then became a lawyer, doing an excellent job in taxation law, in 1954. Miss Margaret stood twice in elections for the Conservative Party before being elected to the House of Commons(下议院) in 1959. ____ After that she quickly became a spokesman for her party, and member of the Shadow Cabinet(影子内阁).

    ____ Thatcher spent quite a lot of time visiting schools and universities, who encouraged people to be creative. After the Conservatives lost power in 1974, she was appointed to the Shadow Cabinet. She was elected leader of the Conservative Party in the following year. In May 1979, she became Britain's first female prime minister, after the Conservatives regained power from Labor.

    ____ She fought against labor organizations. According to a figure reported by her government, traditional industries were reduced to around 15,000 in total and she also made social housing and public transport private.

    She left office on November 28, 1990 after she failed to carry out a fixed rate local tax, which led to huge popular protest from within her party. In 1992, she was appointed to the House of Lords(上议院), as Baroness Thatcher of Kesteven. In the last few years of her life, she has been busy with writing and public speech. This caused her increasingly poor health. ____

A. She got a degree in chemistry at Oxford University.

B. Also she built strong association with US President Reagan.

C. In June 1970, she became secretary of state for education and science.

D. In power, she was best known for her reducing Britain's traditional industries.

E. Therefore, she had to give up many chances of attending public activities.

F. Thatcher was appointed as a Minister in 1961.

G. Thatcher was well-known as a female leader.

阅读下列文字，回答文后问题。
      操屯兵日久，欲要进兵，又被马超拒守；欲收兵回，又恐被蜀兵耻笑：心中犹豫不决。适庖官进鸡汤。操见碗中有鸡肋，因而有感于怀。正沉吟间，夏侯惇入帐，禀请夜间口号。操随口曰：“鸡肋！鸡肋！”惇传令众官，都称“鸡肋”。
     行军主簿杨修，见传“鸡肋”二字，便教随行军士，各收拾行装，准备归程。有人报知夏侯惇。惇大惊，遂请杨修至帐中问曰：“公何收拾行装？”修曰：“以今夜号令，便知魏王不日将退兵归也。鸡肋者，食之无肉，弃之有味。今进不能胜，退恐人笑，在此无益，不如早归：来日魏王必班师矣。故先收拾行装，免得临行慌乱。”夏侯惇曰：“公真知魏王肺腑也！”遂亦收拾行装。于是寨中诸将，无不准备归计。
      当夜曹操心乱，不能稳睡，遂手提钢斧，绕寨私行。只见夏侯惇寨内军士，各准备行装。操大惊，急回帐召惇问其故。惇曰：“主簿杨德祖先知大王欲归之意。”操唤杨修问之，修以鸡肋之意对。操大怒曰：“汝怎敢造言，乱我军心！”喝刀斧手推出斩之，将首级号令于辕门外。
      原来杨修为人恃才放旷，数犯曹操之忌。操尝造花园一所；造成，操往观之，不置褒贬，只取笔于门上书一“活”字而去。人皆不晓其意。修曰：‘门’内添‘活’字，乃‘阔’字也。丞相嫌园门阔耳。”于是再筑墙围。改造停当，又请操观之。操大喜，问曰：“谁知吾意？”左右曰：“杨修也。”操虽称美，心甚忌之。
      又一日，塞北送酥一盒至。操自写“一合酥”三字于盒上，置之案头。修入见之，竟取匙与众分食讫。操问其故。修答曰：“盒上明书‘一人一口酥，岂敢违丞相之命乎？”操虽喜笑，而心恶之。
      操恐人暗中谋害己身，常分付左右：“吾梦中好杀人；凡吾睡着，汝等切勿近前。”一日昼寝帐中，落被于地。一近侍慌取复盖。操跃起拔剑斩之，复上床睡。半晌而起，佯惊问：“何人杀吾近侍？”众以实对。操痛哭，命厚葬之。人皆以为操果梦中杀人。惟修知其意，临葬时指而叹曰：“丞相非在梦中，君乃在梦中耳！”操闻而愈恶之。
      操第三子曹植，爱修之才，常邀修谈论，终夜不息。操与众商议，欲立植为世子。曹丕知之，密请朝歌长吴质入内府商议；因恐有人知觉，乃用大簏藏吴质于中，只说是绢匹在内，载入府中。修知其事，径来告操。操令人于丕府门伺察之。丕慌告吴质。质曰：“无忧也。明日用大簏装绢，再入以惑之。”丕如其言，以大簏载绢入。使者搜看簏中，果绢也，回报曹操。操因疑修谮害曹丕，愈恶之。
      操欲试曹丕、曹植之才干。一日，令各出邺城门；却密使人分付门吏，令勿放出。曹丕先至，门吏阻之，丕只得退回。植闻之，问于修。修曰：“君奉王命而出，如有阻当者，竟斩之可也。”植然其言。及至门，门吏阻住。植叱曰：“吾奉王命，谁敢阻当！”立斩之。于是曹操以植为能。后有人告操曰：“此乃杨修之所教也。”操大怒，因此亦不喜植。
      修又尝为曹植作答教十余条。但操有问，植即依条答之。操每以军国之事问植，植对答如流。操心中甚疑。后曹丕暗买植左右，偷答教来告操。操见了大怒曰：“匹夫安敢欺我耶！”此时已有杀修之心。今乃借惑乱军心之罪杀之。修死年三十四岁。
曹操既杀杨修，佯怒夏侯惇，亦欲斩之。众官告免。操乃叱退夏侯惇，下令来日进兵。
      次日，兵出斜谷界口，前面一军相迎，为首大将乃魏延也。操招魏延归降，延大骂。操令庞德出战。二将正斗间，操寨内火起。人报马超劫了中后二寨。操拔剑在手曰：“诸将退后者斩！”众将努力向前。魏延诈败而走，操方麾军回战马超，自立马于高阜处，看两军争战。忽一彪军撞至前面，大叫：“魏延在此！”拈弓搭箭，射中曹操，操翻身落马。延弃弓绰刀，骤马上山坡来杀曹操。斜刺里闪出一将，大叫：“休伤吾主！”视之，乃庞德也。德奋力向前，战退魏延，保操前行。
      马超已退。操带伤归寨：原来被魏延射中人中，折却门牙两个，急令医士调治。方忆杨修之言，随将修尸收回厚葬，就令班师。

动物的学习行为有助于动物适应复杂的环境，下列属于学习行为的是（     ）

函数y=xln|x|的大致图像是（   ）

（Ⅰ）求角C的值；

（Ⅱ）若c=2，且△ABC为锐角三角形，求a+b的取值范围．