【正文】 is going on in Beijing, the exhibit aims to show the world this brilliant section of history. The Silk Road is a series of trade and cultural transmission routes that were central to cultural interaction through regions of the Asian continent. It connected the West and East by linking traders, merchants, pilgrims, monks, soldiers, nomads, and urban dwellers from China and India to the Mediterranean Sea during various periods of time. I met my dear hubby in 2009 the second year I was in my school and it was the first year when he came here. We became colleagues. And there was nothing special happening during that year. He was just a kind and humble brother graduated from the same college as me. But we did not know each other till he became my colleague and his office desk was just in front of me. There was only a glass between us. So actually we could see each other when we both look up. But it is not the main reason that really draws us close. How we bee close to each other was something seems quite natural. We went out to play badminton with other colleagues and we sometimes chatted for a while. He is a man of few words but somehow sometimes will say something really humorous. Then one day, to my great surprise, I found a pot of beautiful flower on my desk. It was just the flower I had talked about with my colleague the other day, and I thought it was her who put the flower there. But the truth is not. It was the humble guy sitting in front of me. He just simply said ,”well, I caught sight of this flower and thought that it’s beautiful and you may like it”. I wonder why I was moved because of these simple words and present. Maybe it is the sincerity and the true self that impress me. I thanked him and some colleagues walked past my desk would appreciate the beautiful flower and they noticed that something romance happened there. Then later on, there were some little surprises once in a while. Once, there was something wrong with my drawer and I had plained about it unconsciously. And he fixed it for me. Then the other day, he placed several pink diamond roses beside the flower with a piece of paper saying” I love you more than I can say! Diamond stands for marriage, rose stand for love. I hope you are mine, bee my wife. You are the only girl who I really want to spend the rest of my life to stand by.” Although there were some grammar errors but I got what he meant. He meant so clear and so direct. s Day on February 14, characterized by bouquets of roses, chocolates and romantic candlelight dinners, than they do about their homegrown day for lovers. Even Qixi is nowadays referred to as the Chinese Valentine39。s time for the wild fruits to ripe. The picturesque Arxan in Autumn is indeed a fairyland only exists in a dream that satisfies all your fantasies. If itYou cannot miss out the Autumn of Arxan. It is definitely the best with brightlycolored scenery full of emotions. ll在此，我衷心祝愿您們身體健康、工作順利、生活幸福美滿、一生平安！“不積跬步，無(wú)以至千里”,我的論文能夠順利的完成，歸根于各位尊敬的老師四年的艱辛栽培，使我掌握了專業(yè)基礎(chǔ)知識(shí)，并在論文寫(xiě)作中得以具體實(shí)踐。最后，我還要感謝化學(xué)與材料工程學(xué)院的各位領(lǐng)導(dǎo)和老師，為我們提供良好的做畢業(yè)設(shè)計(jì)的環(huán)境。我不是您最出色的學(xué)生，而您卻是我最尊敬的老師。參考文獻(xiàn)：[1] 中國(guó)科學(xué)院西北植物研究所. 秦嶺植物志[M] 第一卷. 第五冊(cè). 北京: 科學(xué)出版社, 1985.[2] 國(guó)家中醫(yī)藥管理局《中華本草》編委會(huì). 中華本草: 第六冊(cè)[M] . 上?？茖W(xué)技術(shù)出版社, 1999.[3] HOSHIKAY, MURAYAMAN. Analys is of odorants discharged from paederia chinsis[J] . Kogai to Taisaku, 1983, 19(5) : 491 493.[4] 馬養(yǎng)民. 雞矢藤揮發(fā)油化學(xué)成分研究[J]. 西北植物學(xué)報(bào), 2000, 20(1) : 145148.[5] 馬養(yǎng)民. 雞屎藤揮發(fā)油化學(xué)成分和元素的定性鑒定[J] . 陜西林業(yè)科技, 1999, (2) : 1618.[6] 余愛(ài)農(nóng), 龔發(fā)俊, 劉定書(shū). 雞屎藤鮮品揮發(fā)油化學(xué)成分的研究[J] . 湖北名族學(xué)院學(xué)報(bào)(自然科學(xué)版) , 2003, 21(1) : 4143.[7] 尹桂豪, 王明月, 曾會(huì)才. 雞屎藤葉中揮發(fā)油的超臨界萃取及氣相色譜質(zhì)譜分析[J] . 食品科技, 2009, 34(12) : 303307.[8] 林雪容, 殷希, 王艷艷, 紀(jì)明慧. 微波輔助提取雞屎藤莖揮發(fā)油及其成分分析[J] . 安徽農(nóng)業(yè)科學(xué), 2011, 39(32) : 19738－19739.[9] 何開(kāi)家, 劉布鳴, 董曉敏, 陳露, 陳明生, 莫建光. 廣西雞屎藤揮發(fā)油化學(xué)成分GCMSDS 分析研究[J] . 廣西科學(xué), 2010, 17(2) : 138～140, 143. [10]李杰, 劉新平, 徐麗, 宋文建. 超臨界萃取雞矢藤的有效成分[J] . 化工進(jìn)展, 2011, (30) : 288290.[11] 王冬梅, 劉艾琳, 黃林芳, 陳士林. 雞屎藤抑制丁酰膽堿酯酶活性及活性部位的UPLCQTOFMS 分析[J] . 中國(guó)醫(yī)科大學(xué)學(xué)報(bào), 2013, 44(1) : 44－48. [12] 吳 強(qiáng), 崔恒敏, 李英倫, 郁建生. 雞屎藤作墊料預(yù)防雛雞白痢的苗醫(yī)理論分析[J] . 黑龍江畜牧獸醫(yī)(科技版) , 2011, (2) : 101 102.[13] 余勉. 雞矢藤化學(xué)成分及藥理作用研究進(jìn)展[J] . 衛(wèi)生職業(yè)教育, 2009, 27 (20) : 149 150.[14] 殷希, 紀(jì)明慧, 吳放心, 田岳申, 夏智高, 萬(wàn)智恒, 單苗苗. 雞屎藤抗氧化活性成分的提取及其對(duì)羥基自由基的抑制率[J] . 理化檢驗(yàn)化學(xué)分冊(cè), 2010, 48(12) : 14661469.[15] 張加雄, 胡軼娟, 朱軍. HPLC法同時(shí)測(cè)定雞矢藤中熊果酸和齊墩果酸的含量[J] . 現(xiàn)代生物醫(yī)學(xué)進(jìn)展, 2011, 11(24) : 49654967.[16] 張書(shū)霞. 雞屎藤的營(yíng)養(yǎng)成分分析[J] . 食品研究與開(kāi)發(fā), 2006, 27(3) 150－151.致 謝四年的讀書(shū)生活在這個(gè)季節(jié)即將劃上一個(gè)句號(hào)，而于我的人生卻只是一個(gè)逗號(hào)，我將面對(duì)又一次征程的開(kāi)始。因此可以利用甜藤揮發(fā)油中部分化學(xué)成分含大量香味這一特性用來(lái)作食用香料的原料和調(diào)配各種香型的香精，有很大前景。（3）芳樟醇具有類似佛手（香檸檬）香味，用于食用香料和香精的配制，還可配制人工精油和食用香精。揮發(fā)油的主要成分有：環(huán)己醇、呋喃甲醛、4羥基3甲基苯乙酮、苯乙醛、芳樟醇、棕櫚酸、氯苯等化學(xué)成分。從上述可分析知甜藤揮發(fā)油的化學(xué)成分存在差異，可能是同種方法在提取過(guò)程中，由于條件的設(shè)定不同，造成的差異，還可能是同種方法不同地域差異導(dǎo)致這一成分含量的差異性。 不同提取方法中甜藤揮發(fā)油成分分布規(guī)律從上表中可知采用水蒸氣法提取甜藤中揮發(fā)油成分43種比采用微波輔助萃取甜藤中揮發(fā)油成分67種相對(duì)少，這兩種不同方法提取甜藤揮發(fā)油中有28種化學(xué)成分相同，其中用水蒸氣法提取甜藤揮發(fā)油含量中有19種化學(xué)成分的含量相對(duì)高于微波輔助法提取甜藤揮發(fā)油含量的相同成分，有9種化學(xué)成分的含量相對(duì)低于微波輔助提取甜藤揮發(fā)油含量的相同成分。這43種物質(zhì)里面有12種物質(zhì)為醇類，7種為醛類，7種為酸類，4種為烷烴類，也有少量酚，酮，酯，烯，胺，芳烴，雜環(huán)等物質(zhì)。數(shù)據(jù)分析過(guò)程中去掉檢測(cè)出與乙醚(AR) 相同的化合物質(zhì)，剩下的化學(xué)成分則為水蒸氣蒸餾法和微波輔助法得到的甜藤揮發(fā)油的成分。2 實(shí)驗(yàn)材料與方法 材料、儀器和試劑 材料甜藤鮮品，采集于凱里 儀器GCMS QP2010SE氣相色譜質(zhì)譜聯(lián)用儀（日本島津），F(xiàn)A2004電子分析天平（上海良平儀表有限公司），MH500調(diào)溫型電熱套（北京科偉永興儀器有限公司），常壓微波合成儀，揮發(fā)油提取儀器 ，冷凝管，圓底燒瓶（500 mL），燒杯（50 mL，500 mL），量筒（10 mL，100 mL），注射器（5 mL），樣品瓶（2個(gè)），膠頭滴管，水管，分液漏斗 試劑乙醚(AR)，蒸餾水，無(wú)水硫酸鈉 實(shí)驗(yàn)方法 色譜和質(zhì)譜條件氣相色譜條件：RTX5MS彈性石英毛細(xì)管柱（30 m mm μm ）；柱溫：50 ℃保持1 min，以10 ℃/min升至100 ℃，保持5 min，以10 ℃/min升至240 ℃，保持1 min；汽化室溫度：250 ℃；溶劑延遲：3 min；進(jìn)樣量：1 μL；載氣： He；總流量：5 mL/min；載氣流量：3 mL