查询词典 twenty first

Methods Magnetic resonance imagings of pelvis and femur were performed on 28 adult patients first diagnosed as acute granulocytic leukemia and 16 diagnosed as chronic myeloblastic leukemia based on morphology,immunophenotype and cytogenetic analysis. Twenty age-matched healthy volunteers were selected as controls. Results MRI of bone marrow in all patients were obviously different from those in controls.

方法搜集经细胞形态学、免疫学及遗传学分型综合分析确诊的成人初诊急性粒细胞白血病28例及慢性粒细胞白血病16例，所有患者均行骨盆及股骨中上段MRI检查，选取20名年龄匹配的健康志愿者作为对照组。

Everybody knows the story of another experimental philosopher who had a great theory about a horse being able to live without eating, and who demonstrated it so well, that he had got his own horse down to a straw a day, and would unquestionably have rendered him a very spirited and rampacious animal on nothing at all, if he had not died, four-and-twenty hours before he was to have had his first comfortable bait of air.

人人都知道另一位实验哲学家的佳话，他自有一套马儿不吃草也能跑得好的高见，还演证得活龙活现，把自己一匹马的饲料降到每天只喂一根干草。毫无疑问，要不是那匹马在即将获得第一份可口的空气饲料之前二十四小时一命呜乎，他早就调教出一匹什么东西都不吃的烈性子骏马来了。

Methods Twenty-seven patients of first-treated nasopharyngeal carcinoma were treated with full course IMRT including nasopharynx and full neck to supraclavicle.

目的 研究调强放射治疗对鼻咽癌的疗效以及对正常组织的保护和毒性反应。

Methods Twenty-seven patients of first-treated nasopharyngeal carcinoma were treated with full course IMRT including nasopharynx and full neck to supraclavicle.

对27例鼻咽癌初治患者鼻咽和全颈及锁骨上全程实施IMRT，肿瘤靶区授予处方剂量68～72 Gy。

Althought the thing has pasted for twenty years,but i can remember the scene syllabify that the first time i arrived at florence.

虽然事情已经过去二十年了，但我依然清晰地记得首次抵达佛罗伦萨的情景。

In order to get the information of interaction between metal complex and DNA and select metal complexes which can cleave DNA effectively, twenty seven transition metal complexes containing O/N coordinate atoms have been synthesized in this thesis. We report the synthesis, crystal structure and properties of the complexes. One of the complexes is the first μ〓-oxalato tetranuclear Cu complex, in which there is ferromagnetic interaction between the copper atoms bridged by oxalate ions. Two trinuclear copper complexes containing partial cubane Cu〓O〓 cores have been synthesized and discussed the magnetic properties.

为了解金属配合物与DNA的相互作用及筛选能有效切割DNA的金属配合物，为无机药物合成及应用提供基础信息，本文利用十个含N、O原子的多齿配体设计合成了二十七个未见文献报道的过渡金属配合物，并解析了它们的晶体结构：其中包括首例μ〓-草酸根的四核铜配合物；合成了两个具有μ〓-OH〓三核缺角立方烷结构的Cu配合物；以HCBP衍生物为配体合成了七个过渡金属配合物；以SCN〓、N〓，C〓O〓等为桥联配体，以dmpyen为端基配体合成了十一个配合物。

This is the first time that I do not go home in my vocation for twenty years' studying, which makes me unconvenient.

夜上海》大约是在我离开上海半个月之后拍摄的，搬上银幕却是在一年多以后。

During these years, which usually began at the age of fifteen or so and were deemed to end either with the onset of puberty or the twenty-fifth year- whichever came first-drow children at last became physically strong enough to begin to channel the forces of wizardly magic, and well-schooled enough to read and write the complicated Drowish language.

这一时期大约从十五岁开始，到青春期开始或者二十五岁的时候结束。到这时，一个卓尔儿童已经足够强壮可以引导奥术的力量了，并且受过足够的教育可以阅读和书写复杂的卓尔文字。

Sometimes I thought if digging a hole under the place where theymade their fire, and putting in five or six pounds of gunpowder,which, when they kindled their fire, would consequently take fire,and blow up all that was near it: but as, in the first place, Ishould be unwilling to waste so much powder upon them, my storebeing now within the quantity of one barrel, so neither could I besure of its going off at any certain time, when it might surprisethem; and, at best, that it would do little more than just blow thefire about their ears and fright them, but not sufficient to makethem forsake the place: so I laid it aside; and then proposed thatI would place myself in ambush in some convenient place, with mythree guns all double-loaded, and in the middle of their bloodyceremony let fly at them, when I should be sure to kill or woundperhaps two or three at every shot; and then falling in upon themwith my three pistols and my sword, I made no doubt but that, ifthere were twenty, I should kill them all.

这时，我已怒不可遏了，但还是强压心头的怒火，往回走了二十多步，来到一片矮树丛后面。靠着这片矮树丛的掩护，我一直走到那棵大树背后。那里有一片小小的高地，离那些野人大约有八十码远。我走上高地，把他们的一举一动看得清清楚楚。事情已发展到万分紧急的关头了，因为我看到有十九个野人挤在一起坐在地上，他们派出另外两个野人去宰杀那可怜的基督徒。看来，他们是要肢解他，一条胳膊一条腿地拿到火上去烤。我看到那两个野人这时已弯下腰，解着那白人脚上绑的东西。我转头对星期五说：&听我的命令行动。&星期五说他一定照办。我就说：&好吧，星期五，你看我怎么办就怎么办，不要误事。&于是，我把一支短枪和一支乌枪放在地下，星期五也跟着把他的一支鸟枪和一支短枪放在地下。我用剩下的一支短枪向那些野人瞄准，并叫星期五也用枪向他们瞄准。然后，我问星期五是否准备好了，他说：&好了。&

Back in 1924, Bill Havens had been chosen to represent the United States in coxed eights rowing, but declined in order to stay home with his wife, who was expecting their first child. Twenty-eight years later, that child, Frank Havens, won a gold medal in the Canadian singles 10,000m canoeing event.

回到1924年，比尔-海文斯已经选择了代表美国参加八人单桨有舵手赛艇比赛，但由于要待在家里与妻子等待他们第一个孩子出生，比尔未能参加奥运会。28年后，那个孩子弗兰克-海文斯替父亲圆了奥运金牌梦，他在加拿大式皮划艇比赛中，夺取了单人1万米项目的冠军。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。