In the course of the condensation of 2, 4, 6-triamino quinazoline with substituted benaldehyde, the solvent DMF was replaced by absolute ethanol and the dried 3A clathrates was used as the dehydrating agent in order to improve the yield.

在2www.色淫荡操逼，4激情偷乱人伦在线视频，6-三氨基喹唑啉與取代苯甲醛的縮合過程中日本、乱论、欧美、国产，用無水乙醇代替DMF作溶劑欧美的视频，并用干燥過的分子篩吸收反應過程中生成的水，從而簡化了后處理的步驟欧美性交在线电影，并提高了產(chǎn)率午夜福利照片。

Replaced the line segments of the corner area with two and three-segment quintic splines.

取代線段的角落里有兩個領域和三個部分五次樣條。

In 2001, the central government replaced the quota system on IPO by the verification and approval system.

在2001年色呦呦在线观看1区2区，中央政府以審批和許可制度替換了首次公開招股的定額制度欧美性交ααα,AAA。

The first chapter ("Economic Analysis: the Analytic Framework of the New Institutional Pedagogy"), the methodology of the paper, emphasizes the Old Institutional Pedagogy must be replaced by the New Institutional Pedagogy because of its radicalness in its analytic framework.

第1章("經(jīng)濟分析：新制度教育學的分析框架")是方法論部分，強調舊制度教育學的分析框架過于激進粗大猛烈进出高潮视频大全，必須用新制度教育學的經(jīng)濟分析方法取而代之欧美淫荡性交免费。

For instance, a compound can be synthesized with one of the atoms replaced by a radioactive isotope of the element.

例如，用某種放射性元素來代替原來的元素合成某一化合物在线免费看国产黄，則放射性就可追蹤這一化合物的合成過程久久精品国产国产精福利。

The existing words,""Cargo Ship Safety Radiotelegraphy Certificates or Cargo Ship Safety Radiotelephony Certificates"" are replaced by ""or Cargo Ship Safety Radio Certificates"".

將現(xiàn)有文字"，貨船無線電報安全證書或貨船無線電話安全證書"改為"或貨船無線電安全證書"免费无码国产永久。

"" In paragraph the existing words ""Cargo Ship Safety Radiotelegraphy Certificates, Cargo Ship Safety Radiotelephony Certificates"" are replaced by ""Cargo Ship Safety Radio Certificates"".

" 在本條之中日韩性色自拍视频在线观看免费播放，現(xiàn)有文字"貨船無線電報安全證書、貨船無線電話安全證書"改為"貨船無線電安全證書人人摸人人操人人插。

In the early 90s, with the change of political atmosphere and development of market-oriented economy, the dream of saving Chinese art out of the hard situation with western Modernism came to its end. It was replaced by "Political Pop","Cynic realism","Hippy","raffishness" and practicism propelled by economic profits.

90年代初爱看AV在线官网，政治氣氛的轉變與市場經(jīng)濟的發(fā)展，使得類似于"中國現(xiàn)代藝術展"用西方現(xiàn)代主義來解決中國藝術困境的幻想遭到破滅欧美官网在线观看，取而代之是"政治波普"好叼爽,这里只有精品、"玩世現(xiàn)實主義"、"潑皮"国产女人久久二级的毛片、"艷俗"以及經(jīng)濟利益帶動下的實際主義作風www.色色99。

The wall is removed and replaced by railings, began in Dalian, but originated in the United States.

墻被刪除，取而代之的欄桿上最新在线精品国自产拍三级片，開始在大連18岁免费看黄片，但起源于美國。

This has lead to an understanding that the crystalline fats must be replaced every 180 days throughout the form lest they go into greater distortion through rancidity and then draw a circumstance into their lives in which they could die.

這就帶來了下述理解：肉體中的水晶脂肪必須每隔180天就更新一遍国产精品欧美亚洲韩国日本不卡，以免其因變質而導致更大變形，并最終在生命中帶來致命的環(huán)境中国熟妇性视频一区。