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In the fifth chapter, a series of betulin derivatives including 28-acetoxybetulin, 28-tritylbetulin, 28-benzoylbetulin, 3-0-P-D-glucopyranoside of betulin and some betulinic acid conjugate containing amino acid were synthesized and confirmed by MS and NMR.

第五章分别合成得到了乙酰化白桦酯醇、28-苯甲酰化白桦酯醇、28-三苯甲基化白桦酯醇、3-O-β-D-glucopyranoside of betulin和一系列的白桦酯酸苷氨酸的衍生物，并分别对其进行了结构鉴定。

Kesslak JP,Nalcioglu O,Cotman CW,et al.Quantification of magnetic resonance scans for hippocampal and parahippocampal atrophy in Alzheimer's diseas e.

在控制杏仁核体积、年龄、性别和文化程度等因素后，所做的偏相关分析也显示：海马结构体积与MMSE、WMS、ADS和ADL无显著相关(r值分别为-0.035，-0.191，-0.07，-0.317，P值均＞0.05)。

To extend the database for K_ at sub-zero temperatures,K_-values for phenanthrene,fluoranthene,α-hexachlorocyclohexane,γ-hexachlorocyclohexane,trans-chlordane,o,p\'-DDE,cis-chlordane and trans-nonachlor were also determined by the same method as PCBs over -30～30℃.

与PCBs的结果相同，在温度≥0℃和温度≤0℃时，这些物质的log K_与绝对温度的倒数均呈线性关系。

2A series of alternating polyamide-imideswith fluorenyl cardo structure was synthesized by "one-pot" polycondensation of cardo diamines,trimellitic anhydride and various aromatic diamines including p-phenylene diamine,m-phenylene diamine, 4,4\'-oxydianiline,3,4\'-oxydianiline,2,2-bis[4-(4-aminophenoxy)phenyl]propane, 2,2-bis[4-(3-aminophenoxy)phenyl]propane respectively using triphenyl phosphite as condensing agents.

采用&一锅法&O(来源：88AB57C论文网www.abclunwen.comne—pot Synthesis，由Cardo二胺、偏苯三酸酐和不同二胺包括对苯二胺、间苯二胺、4，4\'—二氨基二苯醚、3，4\'—二氨基二苯醚、2，2—双[4—(4—氨基苯氧基苯基]丙烷和2，2—双[4—(3—氨基苯氧基)苯基]丙烷合成了一系列含有芴基Cardo结构的交替聚酰胺酰亚胺。

In "Voyage for Ireland", this is the pentatonic colour 9 N e4 N/ J- o# P

在&爱尔兰之旅&里，这种五声音色成为了中国与爱尔兰的桥梁。

Results: Although some of the patients acquired scores of intelligence within the normal and borderline range, both of their Full-Scale IQ and Sub-Scale IQ scores were significantly lower than their premorbid levels, showing adverse effects on different aspects o...

结果：部分脑外伤者的IQ值虽在正常或边界智力水平，但他们伤后的总智商或分量表智商显著低于伤前智商（P＜0.05），表明这些患者在脑外伤后存在着某种程度或某方面的智力受损。

No difference were found for daily milking yield for among three groups also no difference for milk fat percentage between one fourth wild and domestic yak,but the milk fat percentage of semiwild is lower than that of o...

经q检验，3组的日均挤乳量和1／4野血牦牛与家牦牛的乳脂率均差异不显著（P＞0.05），而1／2野血牦牛因野性较大，难以挤净含脂较高的二奶，以致乳脂率低于其它两组。

Ten optic disc stereometric parameters including"tw o-dimensional","three-dimensional"and "RNFL-related"parameters were acqu ired to assess the intraobserver and interobserver reproduci...

结果：观察者内和观察者间各视盘参数的ICC值均较高，分别为，正常人组0.811～0.998和0.724～0.963，青光眼组0.803～0.996和0.637～0.897，其中观察者间各视盘参数测量的ICC值在正常人组和青光眼组差异有显著性(P=0.000)，ICC值在&二维&视盘参数、&三维&视盘参数及&与视网膜神经纤维层相关的&视盘参数呈递减分布。

P. G/ C; l3 v2 K Mom, today you are not to move a muscle.

o ： k7 {+ G2 s3 s/ y； X 妈，今天您连动也不用动一下。

O During the hot summer, nothing is more refreshing than going swimming.

P.37 1。在炎热的夏天，没有什麼事是比游泳更凉爽的了。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。