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FELTIN N., LEVI L., INGERT D., PILENI M.P., Magnetic properties of 4-nm Cd1-y Mny S nanoparticles differing by their compositions, y, Journal of Physical Chemistry B 103(1), 1999, pp. 4-10.Feltin N, Levy L, Ingert D, Pileni MP (1999) Magnetic properties of 4 nm Cd 1...
解答:解:∵AB∥CD,AB=2CD,M、N分别是CD、AB的中点, ∴ MN = MD + DA + AN =- 1 4 a - b + 1 2 a = 1 4 a - b ∵ MN =m a +n b ∴m= 1 4 ,n=-1,可得 n m =-4 故答案为:-4 点评:本题在梯形中给出上、下底的中点,求一个向量的线性组合,着重考查了梯形的性质和平面向...
光纤有源元件和设备 性能标准 第4部分:用于千兆以太网应用的 1 300 nm 光纤收发器(IEC 86C/1724/CD:2021) 草案 Draft Document - Fibre optic active components and devices - Performance standards - Part 4: 1 300 nm fibre optic transceivers for Gigabit Ethernet application (IEC 86C/1724/CD:2021);...
Get 5NMJBCDE4SH519500 vehicle history, and see pricing, overview, as well as other details such as installed options, packages, and more!
Get 5NMJFCDE4SH493419 vehicle history, and see pricing, overview, as well as other details such as installed options, packages, and more!
富含大豆的饮食往往与降血压及预防动脉粥样硬化之间存在一定关联,但目前研究人员并不完全清楚大豆改善机体心脏健康背后的分子机制。 近日,一项刊登在国际杂志Nutrition, Metabolism and Cardiovascular Diseases上题为“Soy food intake associates ...
Alias : CXCR4, CD184, HM89, LAP3, NPYR, WHIM, LESTR C-X-C motif chemokine receptor 4 (HIV1 co-receptor). CD184 molecule. Back to the top Specifications Human CXCR4 isoform 2 (pUNO1-hCXCR4b) Genbank : NM_003467.2ORF size : 1059 bp Subclone : NcoI - NheI Mouse CXCR...
典例2珍如图4 -4 是地球E截面图,其中AB,CD分别A O B表示赤道和南回归线,冬至C NM正午时,太阳光直射南回归F线(太阳光线 MD 的延长线图4-4经过地心O),此时,太阳高度最大(即太阳光线与地面水平线EF垂直),若已知南回归线与地面水平线的夹角为 66°34' ,则太阳光线与赤道夹角的度数为 ...