西藏非本科生能报名参加研究生考试考试吗?

截瘫发生率最髙的脊柱结核部位是
A.颈椎 B.胸椎 C.胸椎12 ~腰椎2 D.腰椎

男性，25岁，2天前不明原因出现干咳、胸闷，继之明显喘憋。给予静滴青霉素治疗无效。近3年来.患者常于秋季出现发作性咳嗽、气短。查体:端坐呼吸，呼吸急促，皮肤黏膜轻度发绀，双肺呼吸音减低，散在哮鸣音，心界不大，脉搏120次/分，无杂音，有奇脉。诊断应首先考虑为

A.慢性支气管炎
B.支气管哮喘
C.肺源性心脏病
D.心源性哮喘

证明的充分必要条件是存在非零列向量a及非零行向量使.

Text 2 No wonder they are called"patients".When people enter the health-care systems of rich countries today,they know what they will get:prodding doctors,endless tests,rising costs and,above all,long waits.Some stoicism will always be needed,because health care is complex and diligence matters.But frustration is boiling over.This week three of the biggest names in American business-Amazon,Berkshire Hathaway and JPMorgan Chase-announced a new venture to provide better,cheaper health care for their employees.A fundamental problem with today's system is that patients lack knowledge and control.Access to data can bestow both.The intemet already enables patients to seek online consultations when and where it suits them.Yet radical change demands a shift in emphasis,from providers to patients and from doctors to data.That shift is happening.Technologies such as the smartphone allow people to monitor their own health.The possibilities multiply when you add the crucial missing ingredients-access to your own medical records and the ability easily to share information with those you trust.That allows you to reduce inefficiencies in your own treatment and also to provide data to help train medical algorithms.As with all new technologies,pitfalls accompany the promise.Hucksters will launch apps that do not work.But with regulators demanding oversight of apps that present risks to patients,users will harm only their wallets.Not everyone will want to take active control of their own health care;plenty will want the professionals to manage everything.The benefits of new technologies often flow disproportionately to the rich.Those fears are mitigated by the incentives that employers,govemments and insurers have to invest in cost-efficient preventive care for all.Other risks are harder to deal with.Greater transparency may encourage the hale and hearty not to take out health insurance.They may even make it harder for the unwell to find cover.Will the benefits ofmaking data more widely available outweigh such risks?The signs are that they will.Plenty of countries are now opening up their medical records,but few have gone as far as Sweden.It aims to give all its citizens electronic access to their medical records by 2020;over a third of Swedes have already set up accounts.Studies show that patients with such access have a better understanding of their illnesses,and that their treatment is more successful.Trials in America and Canada have produced not just happier patients but lower costs,as clinicians fielded fewer inquiries.That should be no surprise.No one has a greater interest in your health than you do.Trust in Doctor You.
People may know their health condition better by using technology if_____

A.their medical records are available
B.they accept medical algorithms training
C.data is paid much more attention
D.health-carc institutions trust you