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段惠彬 《中学生英语读写(高中版)》2003,(2)
Two women,the dog owners,are arguing about whose dog is smarter…The first woman: My dog is so smart,every morning he waits for the paper boy to come around and then he takes the newspaper to me.The second woman:I know.The first woman:How?The second woman:My dog told me.A Joke!山东@段惠彬… 相似文献
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一、比较的方面要对等。北京天气比上海冷。误:The weather in Beijing is colder than Shanghai.正:The weather in Beijing is colder than that in Shanghai.误:It is colder in Beijing than Shanghai.正:It is colder in Beijing than in Shanghai. 相似文献
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格林一家已在国外生活了十几年了。误:The Greens have lived in abroad for over ten years.正:The Greens have lived abroad for over ten years. 相似文献
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李建高 《语数外学习(初中版)》2000,(6):50-53
1.太阳从东方升起。误:The sun rises from the east.正:The sun rises in the east.析:在“东、西、南、北”等方位的名词前面习惯上用介词in, 相似文献
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《北京师范大学学报(社会科学版)》2006,(4):43-43
一、专著的标注方法示例
[1] PIGGOT T M. The Cataloguler's Way through AACR2: From Document Receipt to Document Retrieval [M]. London: The Library Association, 1990. 相似文献
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In的掺杂对化学水浴沉积SnS薄膜电阻率的影响 总被引:1,自引:0,他引:1
SnS and SnS:In films were deposited onto glass substrates by chemical bath technique. The structure and surface morphology of the SnS:In films were studied by X-ray diffraction (XRD) and scanning electron microscope (SEM) respectively. Energy dispersive spectroscopy (EDS) showed the existence of In in the films. The undoped SnS film exhibited a rather high resistivity and InCl3 could reduce the resistivity of these films by two orders approximately. The band gaps of the SnS and SnS:In films were evaluated from the optical transmission spectra. 相似文献
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1990年,美国麻省理工学院的一位教师出版了一本名叫《第五项训练:学习型组织的艺术和实践》(The Fifth Discipline:The Artand Practice of the Learning Organization)的书(以下简称《第五项训练》)。从那以后,世界多了一个流行的词:学习型组织。 相似文献
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1.那个老人几乎不会读书写字,对吗?误:The old man can hardly redo or write,can‘t he? 正:The old man can hardly read or write,can he。 相似文献
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Li D Wang QQ Tang GP Huang HL Shen FP Li JZ Yu H 《Journal of Zhejiang University. Science. B》2006,7(11):906-911
Objective: To construct a novel kind of nonviral gene delivery vector based on polyethylenimine (PEI) conjugated with polypeptides derived from ligand FGF with high transfection efficiency and according to tumor targeting ability. Methods: The synthetic polypeptides CR16 for binding FGF receptors was conjugated to PEI and the characters of the polypeptides including DNA condensing and particle size were determined. Enhanced efficiency and the targeting specificity of the synthesized vector were investigated in vitro and in vivo. Results: The polypeptides were successfully coupled to PEI. The new vectors PEI-CR16 could efficiently condense pDNA into particles with around 200 nm diameter. The PEI-CR16/pDNA polyplexes showed significantly greater transgene activity than PEI/pDNA in FGF receptors positive tumor cells in vitro and in vivo gene transfer, while no difference was observed in FGF receptors negative tumor cells. The enhanced transfection efficiency of PEI-CR 16 could be blocked by excess free polypeptides. Conclusion: The synthesized vector could improve the efficiency of gene transfer and targeting specificity in FGF receptors positive cells. The vector had good prospect for use in cancer gene therapy. 相似文献
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Function (功能 ): Talking about comparisons.
Teaching points (重点 ): 1. The comparative degree of adjective. 相似文献
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《中学英语之友(新教材高一版)》2011,(9):6-12
1.The library is open on Saturday from 8:30 am to 10:00 am.星期六上午8:30到10点图书馆开门。 相似文献
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《南京晓庄学院学报》2013,(6):123-124
ZHANG Jian (Taizhou University, Taizhou 225300, China) Abstract: The first edition of Poetry Monthly played a significant role in the transition from Chinese traditional po- ems to new poems in the history of China's modem literature. The four main editors of Poetry Monthly: Ye Shentao, Liu Yanling, Zhu Ziqing and Yu Pingbo who came together for their common interests and history responsibility. The four editors were all born and grew up in Jiangsu Province, a land bearing a profound cultural heritage. There- fore, the open and diverse cultures and the soil of literature of Jiangsu are naturally the principal contributors to the publication of Poetry Monthly. Key words: the soul of Jiangsu poetry; Poetry Monthly; four editors; cultural heritage 相似文献
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The charge distribution in thin mesoscopic superconducting ring is studied by the phenomenological GinzburgLandau theory. In the giant vortex states we find that the mesoscopic rings may present three kinds of charge distribution while the disk only owns the first two kinds. The charge near the inner radius may change its sign from negative to positive with increasing applied field. In the multivortex state we find that there exist saddle-point states and stable multivortex states. The distribution of charge and the superconducting electron density in the (0:2) saddle states and the (0:4), and (1:5) stable multivortex states has also been studied. The contour plot of the charge distribution and the Cooper pair density distribution are given. 相似文献
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