Pleasant to drink green tea, then a touch of aromatic Qin Man at once in deep, long kiss like that, but less so hot, a lot more closer to the temperature.

愜意地喝一口綠茶一极一黄一区，那淡淡的芳香立刻沁滿周身无码最新首页，如同那久違的親吻自拍高潮日韩在线视频播放，只是少了那般火熱在线观看你懂的网站免费不卡，多了更為貼近的溫度亚洲第2页亚洲第二。

The optimum conditions for this reaction were confirmed: the mole ratios of the Lewis base and AlCl〓 with the electron-rich aromatic monomer are 1. 2 and 3. 4, respectively; 1, 2-dichloride ethane is the most suitable solvent in this reaction; The solution of the two reactants must be added slowly to a large amount of solvent containing catalyst under pseudo-high dilution conditions; The Lewis base, such as NMP, DMF are applicable in this reaction system.

在此理論的指導(dǎo)下日韩中文字幕二十五页，通過對單體結(jié)構(gòu)的模擬，高選擇性地合成了一種新型結(jié)構(gòu)的芳香環(huán)狀聚硫酯二聚體蜜芽尤物av无码点击进入网站，對其結(jié)構(gòu)進行了精確的表征老太婆性爱，在不同溶劑中得到了該環(huán)狀二聚體的單晶看a片所有网站，單晶X-ray衍射表明該二聚體為環(huán)張力極小的大環(huán)化合物。