Two veteran math educators demonstrate how some "magnificent mistakes" had profound consequences for our understanding of mathematics' key concepts. In the nineteenth century, English mathematician William Shanks spent fifteen years calculating the value of pi, setting a record for the number of decimal places. Later, his calculation was reproduced using large wooden numerals t...(展开全部)

在线阅读本书 Only the person who gave us Tuesday could have devised this fantastic tale, which begins with a school trip to the Empire State Building. There a boy makes friends with a mischievous little cloud, who whisks him away to the Cloud Dispatch Center for Sector 7 (the region that includes New York City). The clouds are bored with their everyday shapes, so the boy obligingly ...(展开全部)

ごちそうを食べて自分の部屋で寝たはず…だが目覚めると、ナツは荒れ狂う海の上にいた。どうして自分がここにいるのかわからない。やがて流れ着いた無人島。生きるための過酷な冒険が始まった!! 近い将来、地球に隕石が衝突し、地上の生物は壊滅的なダメージを受ける。それを予測した政府は、人類の存亡をかけ「7SEEDS（セブンシーズ）」計画を発動した。5チーム各7名が選ばれ、冷凍保存により地球環境の回復を待つ。チーム選抜のため集められた子供達の、未来をかけた教育と試練が始まった－－－!!

简介：马嘉祺：好久不见 许小姐 这些年你后悔过吗

“なな，好巧。”仙道从陵南带回了新一年的篮球队队服，背号是“7”。“阿彰在球场上会更所向披靡哦，以后有我罩着你？”葉月七濑跪坐在床上伸手去抓那件蓝白色运动衫，一不留神扑了空，仙道眼明手向前一步扶助她，幸好赶上了。七濑手中的苹果汁脱手而出，洒满整间卧室，好似一场烟花雨。天花板、白墙、淡蓝色的床单，无一幸免。“是，是，小心点嘛。”七濑稳稳跌入仙道守候的怀抱中，面对他的温柔笑脸，吐吐舌头道：“你知道就好！不过又把你房间弄脏了，sorry！”仙道没所谓笑笑，他习惯了。习惯从有记忆以来就与他形影不离的七濑，习惯她无声或闹腾的陪伴，习惯她开心时挽住他的手臂去买一支冰淇淋共享，习惯她难过时钻入胸怀大哭的眼泪。习惯她在他的床上捣乱，不知不觉睡着，替她盖上棉被。习惯一场在心口难开的暗恋，一不小心，持续了二十年。ps：7= なな（nana）=七濑。pps:ooc预警，尽量贴合人物性格。ppps：有交往他人情节。

Dazzling photographs combine with inspiring insights from international ocean icon Sylvia Earle and other notable ocean advocates, paying a poignant tribute to the beauty and magic of the ocean and shedding light on its abundant gifts to the planet. This lyrical ode to the ocean marries the insights and inspiration of ocean advocate Sylvia Earle, and other experts and celebriti...(展开全部)

There are books that enlarge the mind, there are books that enrich the soul, but rarely comes a book so beautifully-written and profound that it manages to do both -- ELIF SHAFAK, author of The Island of Missing Trees The most daring history book of the year ... told in the present tense with all the dash and flair of a novel. The research is faultless: we are immersed ... it b...(展开全部)

VOL7 SCENE34 永生的墓碑IV SCENE35 永生的墓碑V SCENE36 永生的墓碑VI SCENE37 战斗资格I SCENE38 战斗资格II SCENE39 战斗资格III 故事的设定方面倒是和吸血鬼猎人D有些类似，大陆上怪物横行危害人类，而为了对抗它们某神秘组织制造出了一些半人半妖的妖怪猎人，并称之为“大剑”。大剑由于本身就是混血，所以即是妖怪的死对头但同时也不为人类所信任。而她们的宿命也很讽刺，随着不断的战斗她们的身体也会逐渐向妖怪转变，到最后只有两条路可走，要么，在变成妖怪之前让同伴杀死自己。要么，就让自己的妖力完全觉醒，成为最强大的怪物“觉醒者”而与昔日的同伴为敌……