来源

The typical pathological characteristics of SPTs may result from gradual degenerative changes induced anoxemia in some SPT's areas. The heterogeneity of SPTs on different antibody markers showed that the SPTs may be originated from pancreatic embryonic stem cells, and result from immature differentiation of the pluripotential stem cells during pancreatic genesis.

SPT典型病理特征是由于肿瘤组织不同区域相对缺血、缺氧所造成的退行性变的结果，SPT表达多种组织来源的抗原，反映其可能来源于胰腺干细胞及与其发育密切相关的胚胎神经嵴的神经前体细胞，且在发育过程中发生分化不成熟的结果。

A powerful anti-ageing antioxidant, Beta Carotene is used by the body as a safe and natural source of vitamin A.

强大的抗衰老的抗氧化剂，β-胡萝卜素是用身体作为一种安全，自然来源维生素A

FQNs shares the anti-infection medicine to don't greatly differ with the medicine amount of money,the application each year of frequency percentage.during the period 2000~2005,used the biggest species in the medicine amount of money were an floxacin,qurinodis,rufloxacin,rufloxacin,Gatifloxacin,lomefioxacin respectively,has 22.36%,18.05%,46.16%,22.55%,34.43%,23.8% that FQNs of that year always uses the medicine amount of money respectively.

笔者对2001年~2005年我院门诊氟喹诺酮类药物的用药情况进行较全面的分析，以期了解氟喹诺酮类药物在我院门诊用药的现状和趋势。1资料与方法1.1资料来源资料来源于我院电脑数据库。1.2方法统计2000年~2005年我院氟喹诺酮类药物的用药金额及在抗菌药

Application of the proposed method can lead to the anticipant experimental results and also decrease the experimental work largely.

该法的应用不仅能达到预期的目的，而且可以大幅度减少所需的试验次数。来源：ABCd7论文b4网www.abclunwen.com

The Introduction introduced the source, value and anticipant level of this research. It also contained the new concept and route of this research.

在引言中，介绍了本文课题的来源，选题的价值和可能达到的水平，论述了本文的新意以及技术路线。

Native scaffold materials carry good biocompatibility and low antigenicity, but their sources are little.

天然支架材料有良好的生物相容性、低抗原性，但来源相对少。

The source of antimony oxide from fuming process and its main problems existing in reducing smelting are presented in this paper.

介绍了烟化法锑氧粉的来源和还原熔炼时存在的主要问题。

The Encyclopedia is a reliable source of information about classical antiquity.

百科全书是考察古迹的一个可靠的信息来源。

Methods:① Using simple randomized principia, 1754 people of K-nationality and H-nationality aged ≥30 years from August 2004 to August 2005 in four town, Antu and Tumen of Yanbian were selected. The original area and national proportion of people brought into were close, and they knew and agreed the surveying matters.

①于2004年8月～2005年8月期间，在延边地区图们市和安图县4个镇内采取单纯随机原则抽取≥30岁朝鲜族和汉族人群1754人，纳入对象的来源地区民族比例相近，且对调查内容均知情同意。

After lentectomy through the pupillary hole, the epithelial cells at dorsal iris in Anuran tadpole of Bufo raddei Strauch can undergo transdifferentiation to regenerate a new lens. The morphological changes of lens formation from different regeneration stages were observed with both microcope and transmission electron microscope.

以无尾两栖类花背蟾蜍后肢芽期蝌蚪为实验材料，摘除其左眼晶状体，在再生不同时期固定，石蜡连续切片，苏木精-伊红对染，光镜观察，研究晶状体再生的组织来源；另外，选再生不同时期材料用戊二醛，锇酸固定，透射电镜观察，以研究晶状体再生组织的超微结构变化。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。