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This passage gives a brief description of self-definition, a cultivation of their capacities and them sense of responsibility and the qualities that they should have, as student leaders.

本文概述的重点是学生干部的自我定位、能力培养及他们所应具备的责任感与素质。

Results:(1)NSCs form typical neurospheres under adequate concentration in vitro, which are immunoreactive to Vimentin. Typically and terminally differentiated mature neural cells could not be found without the stimulus of mitogen or only under NSCs self-regulation and self-induction;(2)NSCs derived from hippocampus maintain the character of stem cells much longer with better biological behavior; NSCs passed to the 2-3 passage are the best to graft since they have not differentiated;(3)NSCs cultured in vitro could self-regulate and differentiate into neurospheres and progenitors positively immunoreactive to specific antibodies representing neurons, astrocytes, oligodendrocytes and Schwann cells;(4)There are widespread synaptic contacts between various kinds of descendent clones and cells;(5)Neurospheres could be formed without the stimulus of mitogen when NSCs and OECs are cocultured. Many neurospheres and cells immunoreactive to Vimentin, GFAP, MAP2, 02, p75NGFR, GFAP, S-100, Synaptosis, Vimentin, Tau (Tau is only positive in cocultureof HNSCs+HOECs) could be found;(6)The supernatant fluid triturated from adult rat spinal cord stimulates NSCs to differentiate into neurons, but do not terminally differentiate;(7)Fibroblasts and O4 oligodendrocytes are not supported to grow under this culture medium.Part II: Isolation, culture and identification of rat and human olfactory ensheathing cellsOlfactory ensheathing cells/glials are the most powerful cells to enable the regeneration of axons in the central nervous system.

结果表明：①在适宜的浓度体外培养条件下，NSCs能形成典型的神经干细胞克隆球，Vimentin免疫荧光染色阳性，单靠丝裂原刺激或NSCs自我调节和分化诱导，不会产生典型的终末分化的成熟神经细胞；②海马源性的NSCs维持干细胞特性的时间更长，生物学特性更优；③传至第2～3代的NSCs尚未分化时移植最佳；④体外培养的NSCs能自我调控分化为神经元、星形胶质细胞、O2少突胶质细胞、雪旺氏细胞染色阳性克隆球和前体细胞；⑤各种子代克隆球和细胞存在广泛的突触联系；⑥NSCs与OECs联合培养时，不需丝裂原刺激即能形成克隆球，获得大量Vimentin、GFAP、MAP2、O2、p75NGFR、GFAP、S-100、Synaptosis、Vimentin、Tau(Tau只有人HNSCs+HOECs联合培养时出现阳染)染色阳性的克隆球和细胞；⑦脊髓研磨后的上清液刺激神经干细胞向神经元方向分化，但并不出现终末分化；⑧本研究培养条件不利于成纤维细胞、O4生长。

Children is not easy because of teamwork, with the passage of time can also be caused by its resistance to the psychology of self-injury and frequent acts of wounding.

因为患儿不易合群，久而久之也可造成其反抗心理，常常发生自伤与伤人的行为。

Dickens 'died form self-parody'. A Passage to India was 'rubbish', while Forster knew nothing about India, apart from 'the garden boys whom he wished to seduce' and so on.

他说狄更斯"死于拙劣的自我模仿"；而《印度之行》简直就是垃圾，除了"想引诱花童"之外，福斯特对印度根本就是一无所知。

No force on earth can stop the passage of time; only those who work selflessly are able to gain time.

任何力量也阻挡不了时间的推移，只有忘我工作的人才能赢得时间。

After what seems like an eternity there follows an interval of semiconsciousness balanced by such a calm that I feel a great lake inside me, a lake of iridescent sheen, cool as jelly; and over this lake, rising in great swooping spirals, there emerge flocks of birds of passage with long slim legs and brilliant plumage.

这个湖泊上突然形成一个个巨大螺旋，一群群腿细长、羽毛漂亮的候鸟出现了，它们一群群地从清凉的静止湖面上腾空飞起，从我的锁骨下飞过，消逝在一片白茫茫的空间里。

All 5 patients of benign polyp were found to have excellent effect after Nd-YAG laser therapy, and so for, there was no recurrence. Two (esophageal cancer 1 and rectal cancer 1) of 19 patients of G-I cancer had excellent results with tumor size reduced over 90% and endoscope could pass through the stenotic area smoothly after Nd-YAG laser treatment. Six (esophageal cancer 2, gastric cancer 4) of them had good results with tumor size reduced 50-90% and patient could take semiliquid food after laser management. Eight patients (esophageal cancer 2, gastric cancer 4, rectal cancer 2) had fair effects with tumor size reduced less than 50%, but the oral intake or stool passage was improved. Three patients (15.8%) refused further endoscopy and laser management because of poor tolerance.

这5例良性息肉经雷射治疗后，肿瘤完全消失且目前无后发现象。19位恶性癌中，经Nd-YAG雷射治疗后，效果极佳（肿瘤大小减少90%以上，内视镜可通过肿瘤狭窄处）者2例（食道癌及直肠癌各1；效果佳（肿瘤大小减少50~90%，且病人可进食半流体食物）者6例（食道癌2，胃癌4）；效果尚可（肿瘤大小减少50%以下，但饮食进步或排便较过去进步）者8例（食道癌2，胃癌4，直肠癌2；3例患者(15.8%)因不能忍受内视镜及雷射治疗之痛苦，拒绝进一步的治疗而失败。

The passage of a solvent through a semipermeable membrane separating two solutions of different concentrations.

中文解释=溶剂流经半透膜而将二种不同浓度的液体分开。

However, the environment changes, the passage of time, the total can not change our feelings sentimentally attached to them.

然而，环境的改变，岁月的流逝，总也改变不了我们对它们的眷恋之情。

Writing in the margin, or at the top or bottom of the page, for the sake of: Recording questions which a passage raised in your mind; reducing a complicated discussion to a simple statement; recording the sequence of major points right through the book.

在边空处或书页的顶部或底部写批语，以便将你阅读一段文章时头脑里产生的问题记录下来；将一段复杂的讨论转换成一句简单的陈述；将书中从头至尾的要点归纳记录下来。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。