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Hi!还记得第七期《中学生百科》的棒球英语吗?上杉达也、上杉和也、浅仓南的棒球梦想打动着你吗?努力,梦想才会实现,学英语不也是......
<正> Potassium iodate (KIOs) is a multifunctional material with good piezoelectric, pyroelectric, electo-optical and nonli......
A new method of eliminating chirp using normal dispersion fiber(NDF)is presented. This method is analyzed by theory, num......
We propose a cascade system of filters for realizing a non-uniform waveband separation for optical networks. The use of......
The adsorption and photocatalutic decomposition of citric acid on both Pt/TiO2 powder and n-TiO2 single crystal electro......
本文报道在有或无TiCl_4存在时,用工业氢还原二氧化钛产物的相组成,确定了从TiO_2或海绵钛分别制取Ti_2O_3和TiN的条件。在此基础......
学生英语发散思维能力的培养过程是一个非常重要的过程,英语发散思维能力的培养是可以在课堂上通过一定的知识学习过程来实现的。 ......
魔术师大卫拿出一把扇子。扇了几下,又把扇子收拢。接着从口袋里掏出一张白
Magician David took out a fan. Fan a few times, a......
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There are distinct physical,chemical and crystal properties in variantoxides,so their crystalizing characteristics are ......
Introduction. The β-diketone crown ether compound is a multidentate ligand, which can becoordinated with alkaline eart......
Crystallization of high-temperature superconductors YBa_2Cu_3O_(0.5+x)and(La,Sr)_2CuO_(4-y)from homogeneous nonstoichio......
12月是红色的?是白色的?还是绿色的?都是,因为12月有个快乐的节日——圣诞,全部人为了这季节都兴奋着。jingle bell,jingle bell,j......
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The method for pulling large diameter single crystals with the abovesaid difficulties avoided is developed. Here the fr......
The reaction of LnCl_3 with K _9H_7(C_9H_7=indenyl)andK_2C_8H_8(C_8H_8=cyclooctatetraene)in tetrahydrofuran(THF)give th......
Clinical practice guidelines for hepatocellular carcinoma:the first evidence based guidelines from J
TO THE EDITORHepatocellular carcinoma (HCC) is one of the leadingcauses of cancer death in Japan, ranked 3~(rd) in male......
如果说CPU是电脑的心脏的话,那么主板就是电脑的身体。心脏与身体是我们不可缺少的两部分,同样CPU和主板也是电脑能够运行的必要......
在经历了一番短暂而又漫长的延迟之后,DVD论坛终于开始向外发送标准化的DVD盘片了。这种盘片是由Philips和WAMO共同开发的,首先发......
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Within the framework of Dirac Brueckner-Hartree-Fock (DBHF) approach, we calculate the energy per nucleon, the pressure,......
STUDIES ON THE ELECTROANALYTICAL CHEMISTRY OF RARE EARTH ELEMENTS——POLAROGRAPHIC CATALYTIC WAVE OF E
A sensitive catalytic wave of Eu~(3+)-XO in derivative single-sweep polarography is pro-posed. The detective limit is 5......
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Father: What’s wrong with your mom? Son......
In a research project funded by NSFC,Prof.Wang Ning of Huazhong University of Science and Technology and Prof.Huang Bo o......
要知道所设计的机械是不是运转得好,或者能不能担任所设计的工作,最好的方法‘是试车’把机械实地运行一下。飞机引擎工厂,特别注......
Jiang Tai Insurance Broker Co., Ltd and China Pacific Insurance (group) Co., Ltd jointly held a conference on Space and ......
A novel time/wavelength-multiplexed fiber Bragg grating sensor array is presented. This type of sensor array has the ad......
Due to the mining,smelting,sewage irriga-tion,agricultural runoff,and development ofrural enterprises,combined pollutio......
Eight single-low or double-low rapeseed cultivars were bred from 1980 to 2000 in Hunan Province. In this paper, charact......
当Christmas到来的时候,Christmas Father就要给每一个听话的孩子派送礼物。Christmas Father的小驯鹿身上挂着许多bells,所以远远......
The β-carboxylic group plays an important role inthe peptide formation,esterification and the ester exchangeat the phos......
Three new bicyclooctanoid neolignans, kadsurenin A, kadsurenin B and kadsurenin C were isolated from Piper kadsura (Chois......
Photodecarbonylation reaction of acrolein at 193nm was investigated by abinitio molecular orbital method.Our result supp......
<正> 29. HOUZI LAO YUELIANG 猴子捞月亮Yǒu ge xiǎohóuzi zài jǐng pángbiān wǎn. Tāwǎng jǐng litou y......
The distributions of the numbers of the intersections of random convex sets in a lattice of parallelograms are establish......
目的 探讨大鼠出生前暴露于农药氯氰菊酯和甲基对硫磷混配对胎鼠和子鼠脑细胞DNA的毒性效应。方法48只Wistar大鼠在怀孕第1~15天每......
<正> The energy variation of a physical quantity can be expressed as an orthogonal polynomial expansion. These polynomia......