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简介：如果你和某人有约会，他可能迟到，因为他可能不想准时到达。本句是以because引导的原因状语从句的复合句，becausd引导的原因状语从句一般放于主句之后，because表示直接原因，语气最强，最适合回答why引导的疑问句。

简介：ＯＰＴＩＭＡＬＭＯＤＥＬＳＦＯＲＴＨＥＦＩＲＳＴＡＲＲＩＶＡＬＴＩＭＥＤＩＳＴＲＩＢＵＴＩＯＮＦＵＮＣＴＩＯＮＩＮＣＯＮＴＩＮＵＯＵＳＴＩＭＥ－ＷＩＴＨＡＳＰＥＣＩＡＬＣＡＳＥＬＩＮＹＵＡＮＬＩＥ（林元烈）（ＤｅｐａｒｔｍｅｎｔｏｆＡｐｐｌｉｅｄＭａ...

简介：Alocalizedparametrictime-shearedGaboratomisderivedbyconvolvingalinearfrequencymodulatedfactor,modulatinginfrequencyandtranslatingintimetoadilatedGaussianfunction,whichisthegeneralizationofGaboratomandismoredelicateformatchingmostofthesignalsencounteredinpractice,especiallyforthosehavingfrequencydispersioncharacteristics.Thetime-frequencydistributionofthisatomconcentratesinitstimecenterandfrequencycenteralongenergycurve,withthecurvebeingobliquetoacertainextentalongthetimeaxis.Anovelparametricadaptivetime-frequencydistributionbasedonasetofthederivedatomsisthenproposedusingaadaptivesignalsubspacedecompositionmethodinfrequencydomain,whichisnon-negativetime-frequencyenergydistributionandfreeofcross-terminterferenceformulticomponentsignals.Theresultsofnumericalsimulationmanifesttheeffectivenessoftheapproachintime-frequencyrepresentationandsignalde-noisingprocessing.

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简介：AbstractBackground:As COVID-19 makes its way around the globe, each nation must decide when and how to respond. Yet many knowledge gaps persist, and many countries lack the capacity to develop complex models to assess risk and response. This paper aimed to meet this need by developing a model that uses case reporting data as input and provides a four-tiered risk assessment output.Methods:We used publicly available, country/territory level case reporting data to determine median seeding number, mean seeding time (ST), and several measures of mean doubling time (DT) for COVID-19. We then structured our model as a coordinate plane with ST on the x-axis, DT on the y-axis, and mean ST and mean DT dividing the plane into four quadrants, each assigned a risk level. Sensitivity analysis was performed and countries/territories early in their outbreaks were assessed for risk.Results:Our main finding was that among 45 countries/territories evaluated, 87% were at high risk for their outbreaks entering a rapid growth phase epidemic. We furthermore found that the model was sensitive to changes in DT, and that these changes were consistent with what is officially known of cases reported and control strategies implemented in those countries.Conclusions:Our main finding is that the ST/DT Model can be used to produce meaningful assessments of the risk of escalation in country/territory-level COVID-19 epidemics using only case reporting data. Our model can help support timely, decisive action at the national level as leaders and other decision makers face of the serious public health threat that is COVID-19.

简介：在这份报纸，一个频率领域决定反馈均衡器为单身的搬运人传播被建议，时间颠倒时空块(TR-STBC)编码。斜决定反馈均衡器矩阵能从频率领域隧道反应是计算的，这被显示出。在完美的反馈假设下面，建议均衡器能接近匹配的过滤器界限(MFB)。与存在时间领域决定反馈均衡器相比，建议均衡器与一样的均等复杂性展出更好的性能。

简介：【摘要】对于小学生来说,只有将语法放入语境中教,他们对语法知识的理解才会更加透彻,也更容易通过相关实践活动将这些语法知识转化为语言运用能力。本文笔者结合译林新版《英语》五下Unit 8 Birthday中Grammar time和Fun time的教学,探讨教师如何围绕语境开展语法教学。立足单元话题,搭建语法支架。用单元话题开展核心词汇的发散式学习。词汇是语言学习的基石,词汇教学,教师应做到词不离句,句不离篇。所以,在语法板块中教词汇,教师应该通过一个具体的语境将语法进行教学。

简介：【摘要】对于小学生来说,只有将语法放入语境中教,他们对语法知识的理解才会更加透彻,也更容易通过相关实践活动将这些语法知识转化为语言运用能力。本文笔者结合译林新版《英语》五下Unit 8 Birthday中Grammar time和Fun time的教学,探讨教师如何围绕语境开展语法教学。立足单元话题,搭建语法支架。用单元话题开展核心词汇的发散式学习。词汇是语言学习的基石,词汇教学,教师应做到词不离句,句不离篇。所以,在语法板块中教词汇,教师应该通过一个具体的语境将语法进行教学。

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简介：爱因斯坦——诺贝尔物理学奖获得者，荣获了很高的荣誉，但因战争也经历了流离失所的日子。他是一位二十世纪最伟大的科学家之一。

简介：简介TimeTrackerStarterKit使开发人员能够轻松地创建项目跟踪应用程序，帮助用户跟踪分配给特定项目的时间。TimeTrackerStarterKit的思想是提供一个框架，可以使用它快速组织一个实现项目和时间管理系统的实用Web站点。这个StarterKit提供了一系列页而，可以很容易地管理分配给多个项目的时间。它的启始页面包括一个主页，可以记录各个用户分配给特定项日的时间，而其他贝阿允许查看项目、分配给项目的资源以及基于项目或资源的报告。

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简介：Livercelltransplantationpresentsclinicalbenefitinpatientswithinbornerrorsofmetabolismasanalternative,oratleastasabridge,toorthotopiclivertransplantation.Thesuccessofsuchatherapeuticapproachremainslimitedbythequalityofthetransplantedcells.Cryopreservationremainsthebestoptionforlong-termstorageofhepatocytes,providingapermanentandsufficientcellsupply.However,isolatedadulthepatocytesarepoorlyresistanttosuchaprocess,withasignificantalterationboth...

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简介：在lt+be+时间+从句结构中，引导从句的连词有before，that，until，when，since等，这种含time的句子在高中阶段频繁出现而且结构模式种类繁多，许多句子可以相互转化。令学生眼花缭乱，为了理清这个高考热点，我们用表格对这种结构加以归纳和分类总结：

简介：古人云：人为财死；今人语：虫为网亡。虫者，非苍蝇、蚊子之类昆虫，而是目前数量最多的网虫也，网者，则是远超渔网的硕大一张互联网。

简介：Onceuponatime,therewasanislandwhereallthefeelingslived:Happiness,Sadness,Knowledge,andalloftheothers,includingLove.Onedayitwasannouncedtothefeelingsthattheislandwouldsink,soallconstructedboatsandleft.ExceptforLove.

简介：　　最近,一种叫做MYTIME的生活方式正在都市时尚女性中流行蔓延.她们有一点特立独行,喜欢在时间面前任性,一旦感到生活被别人操控,就会立刻摆出一副特立独行的姿态--"It'smytime,本小姐不高兴和你玩了",潇洒地和每个人说一声"Goodbye",于是在这段时间里,老板被炒鱿鱼、爱人被迫待业、厨房宣布罢工…………