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如图为某城市部分街道示意图,四边形ABCD为正方形,点G在对角线BD上,GE⊥CD,GF⊥BC,AD=1 500 m,小敏行走的路线为B→A→G→E,小聪行走的路线为B→A→D→E→F.若小敏行走的路程为3 100 m,则小聪行走的路程为m. 4600. 【解析】小敏走的路程为AB+AG+GE=1500+(AG+GE)=3100,则AG+GE=1600m, 小聪走...
要点1.Ag4纳米簇催化剂的TOF和TON都超过了大多数见诸报道的催化剂体系。成功的分离得到Ag4*中间体,并通过ESI和1H NMR表征Ag4*纳米簇催化剂的结构。从原子尺度理解低核数和多个Ag原子的关键作用,验证了Ag1单原子或者Ag2纳米簇无法实现Ag4纳米...
Be prepared with the most accurate 10-day forecast for Richmond, British Columbia, Canada with highs, lows, chance of precipitation from The Weather Channel and Weather.com
Itisschooltimeag...It is school time again,a new start of a new period. You are probably feeling excited and a little sad that summer is over.Some kids feel nervous or a little scared on the first day of school because of the new things,new teachers,and maybe even a new school....
Length-adjustable telescopic rod is designed to include at least two tubes arranged displaceably in one another, whereby in the region of the pipe over gear of in each case two of the pipes arranged displaceably in one another in each case a connecting sleeve for connecting the two tubes is...
《合同签订技巧与反欺诈(修)》主要内容:随着经济交往的日益增多,合同的应用也日益广泛与普遍。与此同时,利用合同这种法律形式进行欺诈的案件也大量出现。防范合同欺诈,既是签订合同时必须关注和警惕的问题,又是经济管理职能部门维护国家合同管理制度和市场经济秩序的重要工作。基于上述考虑,于2000年4月我们以实践为基础,...
【摘要】目的 将结核分枝杆菌分泌蛋白Ag85B与Hsp16.3在大肠杆菌中融合表达并对其进行纯化和鉴定.方法 采用PCR方法 从质粒pProEX HTb-Hsp16.3扩增Hsp16.3基因,引入48bp的柔性linker结构以确保两蛋白的正确折叠.将目的 片段克隆至pMD18-T载体中进行测序.将测序正确的基因片段双酶切后,替换质粒pProEX HTa-Ag85B-ESAT6中...
如图为某城市部分街道示意图,四边形ABCD为正方形,点G在对角线BD上,GE⊥CD,GF⊥BC,AD=1 500 m,小敏行走的路线为B→A→G→E,小聪行走的路线为B→A→D→E→F.若小敏行走的路程为3 100 m,则小聪行走的路程为m. 4600. 【解析】小敏走的路程为AB+AG+GE=1500+(AG+GE)=3100,则AG+GE=1600m, 小聪走...