【正文】 nshe39。t set fire to this place。m stupid. So does Dad. Do you think I39。m going to call you Nicky. Do you mind?I39。t like, and I got loose one night and came into her cubicle while she was asleep and nulled her restraints, and then she floated around until she banged into something, and that woke her up and she tried to grab, and then that made her bounce all around inside and she broke two fingers and her nose and got blood all over. The attendants came, and one told methey didn39。m not mad! She was not sure for a moment what he meant. She sat down beside and a trifle behind him, and began idly piling sand in her lap. Dr. Island said, I see you39。t! Angry, he waded away, but when he had stalked a short way up the beach he sat down on the sand, his back toward her. I didn39。t. Yes I would. At St. John39。s your name? Nicholas Kenneth de Vore. What39。s been nice the last couple of days, but when everyone is sad, it rains. Nicholas was silent for a time. When they reached the sea, the girl dropped to her knees and bent forward to drink, her long hair falling over her face until the ends trailed in the water, her nipples, then half of each breast, in the water. Not there, Nicholas said. It39。m a memory that has swallowed a bird. Do you want to walk down by the water? They were moving in the direction of the beach already. I was just going to get a drink. You39。t you. Have you e to get me? Nicholas had been in similar conversations before and normally would have preferred to ignore the remark, but he was lonely now. He said, Do you want to go home? Well, I think I should, you know. But do you want to? My mum always says if you39。 then, abruptly, the footprints swerved, wandered among the coconut palms, and at last were lost on the firmer soil inland. Nicholas lifted his head and shouted, Ignacio? Ignacio! After a moment he heard a stick snap, and the sound of someone pushing aside leafy branches. He waited. Mum? A girl was ing toward him, stepping out of the thicker growth of the interior. She was pretty, though too thin, and appeared to be about nineteen。t Earth?There was no answer. Nicholas walked around the ashes of the fire until he found Ignacio39。d build it that way? To answer that, we39。re standing on the inside of the wheel, you39。s transparent or trans lucent. it lets most of the light go through to whatever39。s rare. 39。 the six points of light. They39。s electrodes. She chewed on the end of the thermometer until he frowned at her. The print showed a fat wagon wheel surrounded by broad based, bright red triangular areas. There were six red areas on the inside of the wheel, but they were smaller, and square. The big triangles on the outside are the hottest parts, Gaby said. I figure they39。 and just when he had made up his mind to leave his wife she left him and went off with a miniaturepainter. As he had been thinking for months about leaving his wife and had not done it because it would be too cruel to deprive her of himself, her departure was a very healthful shock. The divorce was arranged and Robert Cohn went out to the Coast. In California he fell among literary people and, as he still had a little of the fifty thousand left, in a short time he was backing a review of the Arts. The review menced publication in Carmel, California, and finished in Provincetown, Massachusetts. By that time Cohn, who had been regarded purely as an angel, and whose name had appeared on the editorial page merely as a member of the advisory board, had bee the sole editor. It was his money and he discovered he liked the authority of editing. He was sorry when the magazine became too expensive and he had to give it up. By that time, though, he had other things to worry about. He had beShe turned to face the camera. Send me what you can about hydrogen ramscoop engines, she said. See if you can give me some idea of what to look for if Themis has one.You39。 trouble at one of the generating piles, and they shut it _ down and it got colder and colder until everybody in the hospital wore their blankets, just like Amerinds in books, and they locked the switches off on the heaters in the bathrooms, and the nurses and the screen told you all the time it wasn39。s rooms, her skin white like motherofpearl, her eyes long and narrow (making him think of cats39。e, Calvin said. Cirocco glanced at him, got a glimpse of his brown eyes before he turned back to his work. That was my thought. A real big fusion ramscoop. The machinery is in the hub, electromagnetic field generators to funnel the interstellar hydrogen into the center, where it gets burned. Gaby shrugged. Makes sense. But what about docking? Well, leaving the thing would be easy enough. just drop out a hole in the bottom and get escape velocity for free, plus some to fool around with. But there ought to he some sort of dingus that would telescope out to the center of rotation when the engine isn39。6. 王珊、陳紅，《數(shù)據(jù)庫系統(tǒng)原理教程》，清華大學(xué)出版社，1998年7月第1版 ，ISBN 730203009X/。2. 任志國(guó)、周其力等，《Access 2000從入門到精通》，浙江科學(xué)技術(shù)出版社，2002年2月，ISBN 7534113164。在她的悉心指導(dǎo)下，我的畢業(yè)論文才得以順利進(jìn)展。致 謝時(shí)光荏苒，三年大學(xué)生涯轉(zhuǎn)眼間即逝。由于個(gè)人知識(shí)的有限性，系統(tǒng)中尚存在著一些不足的之處，部分功能要求沒有很好的按照自己的需求分析而成功的實(shí)現(xiàn)；這些缺陷都還需要進(jìn)一步的優(yōu)化。其他權(quán)限的操作員只能瀏覽系統(tǒng)并查詢和打印相關(guān)信息，修改有關(guān)自己的權(quán)限內(nèi)的信息，不能操作其他權(quán)限的數(shù)據(jù)。學(xué)生宿舍如實(shí)交納電費(fèi)后，要在用戶簽名欄內(nèi)簽名，等等。這樣，學(xué)生從公布的電費(fèi)收取表中可清楚地了解本宿舍的用電情況，而用電是否超定額又一目了然?！皩W(xué)校用電收費(fèi)管理系統(tǒng)”中的電表信息錄入十分簡(jiǎn)單方便，統(tǒng)計(jì)、計(jì)算等工作全部有電腦自動(dòng)操作，管理員只需在短時(shí)間便可完成任務(wù)，優(yōu)勢(shì)十分明顯，而且錯(cuò)誤率比較低。由于程序各個(gè)功能模塊均為漢字顯示，即使沒有太多計(jì)算機(jī)知識(shí)和操作技能的人也可以操作，使用十分方便。用戶管理包括了學(xué)校管理員和學(xué)生用戶，系統(tǒng)維護(hù)包括了權(quán)限設(shè)置、密碼修改、數(shù)據(jù)備份等。 3. 本系統(tǒng)是在Microsoft 2000系統(tǒng)下編譯運(yùn)行的，所以最好也在Microsoft 2000系統(tǒng)下安裝本系統(tǒng)；否則有些功能可能無法使用，會(huì)導(dǎo)致系統(tǒng)出錯(cuò)。⑵.數(shù)據(jù)表之間關(guān)系如下圖所示：㈢ 系統(tǒng)界面設(shè)計(jì)系統(tǒng)界面是系統(tǒng)與用戶之間的接口，也是控制和選擇信息輸入輸出的主要途徑。抄表人員和收費(fèi)人員屬性的相關(guān)資料也來源于學(xué)生信息表。寢室號(hào)碼也等同于本系統(tǒng)中的電表號(hào)碼，符合學(xué)校一個(gè)寢室一個(gè)電表的規(guī)則；寢室號(hào)碼是四位數(shù)字，第一位數(shù)是樓宇號(hào)，第二位是樓層號(hào)，后兩位是房間號(hào)；若有特殊情況，得需要另外補(bǔ)充說明。其中管理的職務(wù)分系統(tǒng)管理員、抄表員、收費(fèi)員三類。至于時(shí)間按時(shí)、分設(shè)置，是因?yàn)槲視簳r(shí)還沒想到用什么字段類型描述時(shí)間，故將時(shí)和分兩者分開，這樣在系統(tǒng)應(yīng)用時(shí)也可對(duì)數(shù)據(jù)進(jìn)行方便的輸入。1. 電費(fèi)管理數(shù)據(jù)表及其數(shù)據(jù)結(jié)構(gòu)⑴.在“用電收費(fèi)”數(shù)據(jù)庫中首先創(chuàng)建一個(gè)“電費(fèi)管理數(shù)據(jù)表”，其表設(shè)計(jì)如下：⑵.表的數(shù)據(jù)結(jié)構(gòu)如下所示：序號(hào)字段名稱字段類型字段大小索引忽略空值