Methods: Forty-two maintenance hemodialysis patients were randomly divided into two groups (twenty-one patients each group): in treatment group high-flux dialysers were used, and in control group, low-flux dialysers were used. They were treated for 12 weeks. The clinical symptom, blood β2 microglobulin (β2-M), paratyyroid hormone, serum phosphate, albumin, serum creatinine, blood urea nitrogen were determined respectively before and after the treatment.

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The so-called Amethyst Initiative , founded by a fed-up former president of Middlebury College, asserts that "twenty-one is not working" because the current drinking age has led to a "culture of dangerous, clandestine binge-drinking" on college campuses.

這個名為&紫水晶行動&的組織是由米德爾伯里學院的一位前任校長創(chuàng)立的欧美日韩一区二区三区综合在线。他們稱&法定的二十一歲已經(jīng)不起作用了&，因為現(xiàn)在的法定飲酒年齡顯然導致了一種&危險的亚洲毛片无码专区亚洲乱、偷偷摸摸且酗酒的校園文化&,人人综合操。

At age twenty-one, Ibsen wrote his first play, a five-act tragedy called Catiline.

在年齡21 ，易卜生寫道：他的第一出戲午夜一级一级www.，五行為悲劇所謂凱蒂琳亚洲一级毛片无码久久精品。

Three strains that largely produced phytase were screened from the twenty-one strains of funguses.

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"Wheats are called diploids when they have seven chromosomes, tetraploids when they have fourteen , and hexaploids when they have twenty-one."

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Results Twenty-one of 60 children (35.0%) whose episodes had been diagnosed as epileptic seizures were identified as non-epileptic attacks by ictal Video-EEG.

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I was to serve as an apprentice till I was twenty-one years of age, only I was to be allowed journeymen's wages during the last year.

我起先反抗国产在线观看精品影院AV，但是終于被勸服，簽訂了合約亚洲一区二区三区偷拍，當時我才只有十二歲熟女屁眼，我要像一個學徒般地工作著，直到二十一歲欧美一级特黄AAAA片免费，也是到最后一年才答應給最低的工資wwww性。

The APEC meeting ended in Sydney with the the twenty one member nations, calling for those responsible for the deadlock in the world trade talks to get serious about breaking down barriers, and talk moneyman talked to us about the current concerns besetting the financial markets.

由21個成員國共同舉辦的亞太經(jīng)貿(mào)合作組織會議日前在悉尼結束，會議要求對在世界貿(mào)易會談中造成的僵局負責igao在线观看免费观看，要認真的解決中間的阻礙欧美色83p，并與金融家談論了目前金融市場上的不利因素。

" The boy was intelligent, active, and bright, and took in his studies uncommon delight;no juvenile follies distracted his mind; no visions of bright eyes, or damsels unkind, and those fair demisisterly beings so gay, yclept"pretty cousins, ne'erpopped in his way; till at length this remarkably singular son could number of years that had passed twenty one.

&那男孩聰明、活潑而又通達事理外国a色网站，異常地喜歡學習三级欧美日韩第一页。從不因小孩子的胡鬧而分心；從沒有明亮的眸子国产精品91一区二区三区，或狠心的小妞国产狼友91精品一区二区三区，或被謂之&嫵媚表親、半似姐妹的放肆尤物突然出現(xiàn)在他面前久久精品免费图片欣赏大全AV。到最后人人澡人人插人人射，這位非同尋常、出類拔萃的兒子終于度過了21個年頭日本乱人伦A片免费高清。

The boy was intelligent, active, and bright, and took in his studies uncommon delight;no juvenile follies distracted his mind; no visions of bright eyes, or damsels unkind, and those fair demisisterly beings so gay, yclept"pretty cousins, ne'erpopped in his way; till at length this remarkably singular son could number of years that had passed twenty one."

那男孩聰明久久福利精品国产极品刺激、活潑而又通達事理，異常地喜歡學習思思99精品视频。從不因小孩子的胡鬧而分心性交a级视频免费看；從沒有明亮的眸子，或狠心的小妞影音先锋全部AV资源，或被謂之&嫵媚表親&可以免费在线观看的黄色网站、半似姐妹的放肆尤物忽然出現(xiàn)在他面前。到最后日韩人妻无码系列专区，這位非同尋常干欧美女人视屏、出類拔萃的兒子終于渡過了21個年頭。