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本刊讯《高中生》杂志在2003年全国教育期刊编校质量检查中,被评为良好。本次检查是由中国新闻出版总署报刊司组织专家进行的,极具权威性和代表性。全国列入检查范围的教育期刊共166种,基本上反映了当代中国教育期刊的实际状况。在本次检查中,列为优秀的期刊27种,占16.2%;良好69种,占41.6%;合格38种,占22.9%;不合格32种,占19.3%。由于教育期刊读者的特殊性,其编校质量要求很高,因为任何一个差错都可能误导学生的学习。《高中生》杂志以指导学生高考为目标,编校质量就显得尤其重要。基于这样的认识,《高中生》杂志自创刊之日起,就建立了严格… 相似文献
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当年填报志愿的时候,我几乎是毫不犹豫地选择了药学。事实上家人的期望一直是医学,但我胆子太小,惧怕血腥,只好采用曲线救国的方略。而之所以忽略了那么多药科大学,执拗地选择华东理工大学的药学专业,倒也并不是有什么独到看法,只是心想学校地处上海,也许能带来更多的机遇和历练。彼时只是无心之举,真正认识了华理,我才 相似文献
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Today 15 Halloween.乐天、星彩和QO糖打算装扮成ghosts来吓一吓琪琪。万圣节前夜惊魂@星彩
@QQ糖~~ 相似文献
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如果大家留意就会注意到这样一个有趣的现象,如果你旁边的人打了一个呵欠,你也会跟着打呵欠。是不是呵欠也会“传染”啊?人打呵欠的时候,嘴张得很大很大,作了一次深呼吸。也就是说打一个呵欠可以呼出身体中积聚下来的二氧化碳气,吸入新鲜空气,所以呵欠可以说是起着保护身体的作用。呵欠是大脑的作用,大脑能够暂时抑制住呵欠。可是见到别人打呵欠,不知不觉中精神松懈下来,不听大脑的指挥,自然也打呵欠了。结果好像“传染”给了别人似的。当然,在人多的屋子里呆的时间长了,屋里空气氧气在减少,二氧化碳在增加,人们都想多吸一点氧气,这也是打呵… 相似文献
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It's not hard to draw a body.只要你能画出像这样的小人,就OK了。Please get ready.Let's start now! 相似文献
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Leaf senescence is often caused by water deficit and the chimeric gene PSA612-1PT is an auto-regulated gene delaying leaf senescence. Using in vitro leaf discs culture system, the changes of contents of chlorophylls, carotenoids, soluble protein and thiobarbituric acid reactive substance （TBARS） and antioxidant enzymes activities were investigated during leaf senescence of PSA612-1PT modified gerbera induced by osmotic stress compared with the control plant （wild type）. Leaf discs were incubated in 20%, 40% （w/v） polyethylene glycol （PEG） 6 000 nutrient solution for 20 h under continuous light [ 130 μmol/（m^2·s）]. The results showed that the contents of chlorophylls, carotenoids and soluble protein were decreased by osmotic stress with the decrease being more pronounced at 40% PEG, but that, at the same PEG concentration the decrease in the transgenic plants was significantly lower than that in the control plant. The activities of superoxide dismutase （SOD）, catalases （CAT）, ascorbate peroxidase （APX）, guaiacol peroxidase （GPX） and dehydroascorbate reductase （DHAR） were stimulated by PEG treatment. However, the increases were higher in PSA612-IPT transgenic plants than in the control plants, particularly at 40% PEG treatment. Lipid peroxidation （TBARS content） was increased by PEG treatment with the increase being much lower in transgenic plant than in the control plant. It could be concluded that the increases in the activities ofantioxidant enzymes including SOD, CAT, APX, GPX and DHAR were responsible for the delay of leaf senescence induced by osmotic stress. 相似文献
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