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简介:<正>病历摘要:患者女,30岁,农民。1月前因“胃炎”“泌感”于当地卫生院给予“胃得乐、磺胺药”口服,5天后右小腿出现片状暗紫色瘀斑伴疼痛,无瘙痒,当地医院诊断为“坏疽性丹毒”,静滴“先锋霉素V及灭滴灵”5天,右小腿紫色瘀斑渐扩大,肿胀,疼痛加重并出现水疱,于94年4月10日以“紫癜型药疹”收皮肤科住院治疗。既往无药物过敏史,家族中无遗传病史。体检:一般情况可,心肺无异常,肝脾未触及。皮肤科情况:右小腿肿胀,见片状暗紫色瘀斑上散在水疱,左小腿见小片状紫红色瘀斑。实验室检查:血尿常规、肝肾功能正常。入院后给予糖皮质激素、钙剂、抗组织胺药物治疗及对症治疗半月,双小腿瘀斑未消退且出现大疱,皮损向四周浸润而出现
简介:and evaluating the success of a particular strategy. They have an executive function. In O’Malley and Chamot framework of learning strategies,Oxford’s taxonomy fails to make a distinction between strategies directed at learning the L2 and those directed at using it (Ellis). The last problem is that compensation strategies are considered as a direct type of learning strategies rather than one type of production strategies,cognitive and social/affective. They grounded the study of learning strategies within the information-processing model of learning developed by Anderson. Metacognitive strategies involve consciously directing one’s efforts into the learning task. These strategies are higher order executive skills that may entail planning learning
简介:LetAbead×drealexpansivematrix.AnA-dilationParsevalframewaveletisafunctionψ∈L2(Rd),suchthattheset{|detA|n/2ψ(Ant-l):n∈Z,l∈Zd}formsaParsevalframeforL2(R~d).AmeasurablefunctionfiscalledanA-dilationParsevalframewaveletmultiplieriftheinverseFouriertransformoff■isanA-dilationParsevalframewaveletwheneverψisanA-dilationParsevalframewavelet,where■denotestheFouriertransformofψ.Inthispaper,theauthorscompletelycharacterizeallA-dilationParsevalframewaveletmultipliersforanyintegralexpansivematrixAwith|det(A)|=2.Asanapplication,thepath-connectivityofthesetofallA-dilationParsevalframewaveletswithaframeMRAinL2(Rd)isdiscussed.
简介:自2010年上汽大众途观上市之日起,就展开了德系SUV面对CR-V、RAV4等日系品牌SUV的反击战,并且凭借其出色的产品力,曾一度出现加价提车仍没有现车的空前盛况.自那之后,途观更是连续坐拥合资品牌紧凑型SUV年度销量第一的宝座,其自上市以来,累计销量已达惊人的128万辆之多.然而,再出色的车型都有其谢幕的一天,在近两年紧凑级SUV百花齐放之后,消费者对于这个级别的车型也不再像五、六年前那么感兴趣.在老对手通用以及各大竞品厂商纷纷推出了以昂科威为首的中型SUV之后,终于凭借其大尺寸、大空间以及更豪华的内饰与科技配置将老款途观拉下马.而今,面对这样的局面,上汽大众自然不会放任对手撒野太久,全新途观L的出现也承担着上汽大众夺回合资SUV销量冠军的重担.