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关键词： 语文课  

ISBN: (纸本)9787121465376

摘要： 本书是《职教高考备考丛书》的《职业教育单独招生考试冲刺试卷·语文》分册，本书根据全国职教高考语文考试大纲和指定规划教材进行编写，全书共包括15套冲刺试卷，内容涵盖了近年来全国职教高考试卷的基本题型和重点。本书旨在提高学生的应试能力，使学生通过考前预演，把握职教高考试卷的命题规律和知识点的分布，开阔学生视野，提高答题技巧，针对性强。

摘要： 依照广告审批的相关规定,按照广告厂家的要求,本刊刊登的血必净广告图片和内容均按照广告审查批准文件的原件刊出,故广告内容"成份"未修改为"成分",时间单位仍用汉字表示,剂量单位"ml"未修改为"mL",标示数值范围的标点符号"-"未修改为"～".特此声明!

关键词： 核心素养   高中数学   试卷讲评课  

摘要： 新课程标准中明确指出在数学教学中,要将培养学生的数学学科核心素养作为根本指导.试卷讲评课是高中数学教学的重要组成部分,也是高中数学的重要课型之一,特别是在高三的综合复习中显得更为重要.以核心素养为导向的讲评课,不但可以让学生认识到自己在知识上的漏洞,并及时查漏补缺,还能对已有的知识体系进一步完善,在这种情况下,教师的教学方式需要进行多样化的变革,对进一步探索提升高中数学教学质量有较好的促进作用.本文从高三试卷讲评课的现状出发,提出了高中数学试卷讲评课的教学模式,希望能够为相关研究提供参考依据.

摘要： Acute lymphoblastic leukemia (ALL) is the most common type of malignant disease among children. In the case of malignant diseases, abnormal cells can divide uncontrollably and spread to surrounding cells. Chemotherapy is the most common treatment for ALL. Since every patient responds differently to the therapy, it needs to be controlled and individualised. Minimal Residual Disease (MRD) indicates the patient's response to the treatment. Based on this value the intensity or length of treatment can be modified. Flow cytometry is a laser-based method which can detect MRD. There are several methods for the automatic detection of cancer cell populations based on flow cytometry data with astonishing results but have only one striking disadvantage: the lack of interpretability of the processes. In this thesis, we apply an image segmentation method, the U-Net model, to solve this problem in a visual manner so that all steps of the gating procedure can be easily comprehended. The results meet the performance of the state-of-the-art methods with the additional advantage of easy tractability through the visual representation of the gating procedure.

摘要： This work studies the nearshore hydrodynamics of a shallow turbulent flow entering a laterally unconfined quiescent ambient with a sloping bottom boundary. Examples of such flow are neutrally buoyant ebb tidal jets and hyperpycnal river plumes entering open *** experiments were applied in a shallow open channel connected to a sloping bottom tank. A three-dimensional (3D) CFD model based on large eddy simulation is established and validated using the experimental data. The validated model not only provides detailed 3D flow field information but also extends the experimentally studied range of initial and boundary conditions. With neutral buoyancy, turbulent inflow is classified as a tidal jet, whose transverse velocity profile gradually transforms from a top-hat profile into a Gaussian distribution. Bounded by a sloping boundary, the jet extends vertically, resulting in an abrupt decrease in centerline velocity near the channel mouth. Under the combined effects of the vertical extension and lateral entrainment, the jet undergoes lateral contraction before spreading laterally. Shear layers are generated at both sides of the jet, converging towards the centerline with increasing offshore distance. The momentum thickness of the shear layers increases longitudinally until the shear layers from both sides meet and merge at the centerline. Kelvin Helmholtz-type coherent structures (KHCS) develop inside the shear layers, contributing remarkably to turbulent kinetic energy production and momentum transfer (70%-80%). The KHCS enlarge with the growth of the shear layers and extend vertically as the jet spreads in the vertical direction. Nevertheless, the Strouhal number of KHCS remains almost constant (~0.079). After the shear layers from both sides meet at the centerline, the jet undergoes a "flag-like" flapping *** negative buoyancy, the turbulent inflow is classified as a hyperpycnal plume. Examples are cool and sediment-laden river flowing into open w

摘要： 美国太空军航天发展局表示,将借助"UFO战机"星座,更好地探测和跟踪高超声速导弹.该星座的正式名称为"作战人员轨道支援火控系统",初期由8颗卫星组网,配备红外和光学传感器,对包括高超声速导弹系统在内的"先进导弹威胁"开展全球探测、预警和精确跟踪.该星座的原型星计划在2026年发射.