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心绞痛发作的典型部位是
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女性，56岁，高血压、糖尿病史3年，突发胸前区疼痛3小时入院。心电图标准12导联是Ⅱ、Ⅲ及aVF ST段抬高，病理性Q波，血压85/60mmHg，心率110次/分，心脏三尖瓣区可闻SM(2～3)/6反流样杂音，双肺呼吸音清，颈静脉怒张，肝肋下1cm。 该例目前的诊断应考虑为
某地初冬，东北某市一居民区，一家4口昏睡不醒，后经邻居及时发现，并报告当地疾病预防控制中心，经调查发现病家室内燃有一小煤炉，受害者有呼吸困难、脉搏加快、神志不清等症状。 受害者最可能是由于
男性，50岁，急性心肌梗死入院。入院12小时后体检：血压130/80mmHg，心率100次/分，律齐，S1正常，S2稍增高，双肺底散在湿啰音，但少于双侧肺野的50%，心电图V1～4ST抬高，V1、V2呈QS型，V3、V4呈qR型。CK-MB 80U/ml，肌钙蛋白T2.2mg/L。 该患者进一步发展可能会发展为
You thought the rising cost of college tuition was bad Then check out the rising cost of college textbooks. The American Enterprise Institute’s Mark Perry has put together a detailed chart showing the notorious, 812 percent rise in the cost of course materials since 1978, as captured in the Bureau of Labor Statistics’ consumer price index data. The price of all those Introduction to Sociology and Calculus books have shot up faster than health-care, home prices, and, of course, inflation. Academic publishers will tell you that creating modern textbooks is an expensive, labor-intensive process that demands charging high prices. But as Kevin Carey noted in a recent article, the industry also shares some of the dysfunctions that help drive up the cost of healthcare spending. Just as doctors prescribe prescription drugs they will never have to pay for, college professors often assign titles with little consideration of cost. Students, like patients worried about their health, don’t have much choice to pay up, lest they risk their grades. Meanwhile, Carey illustrates how publishers have done just about everything within their power to step up their profits, from bundling textbooks with software that forces students to buy new editions instead of cheaper used copies, to suing a low-cost textbook start-ups over ill-conceived and inadequate copyright claims. And that has consequences for students. According to the National Association of College Stores (NACS), the average college student reports paying about $655 for textbooks and supplies annually, down a bit from $702 four years ago. The NACS credits that fall to its efforts to promote used books along with programs that let students rent rather than buy their texts. But to put that $655 in perspective, consider this: after aid, the average college student spends about $2,900 on their annual tuition, according to the College Board. We’re not talking about just another drop in the bucket here. AEI’s Perry writes that he’s confident open educational resources, made available via the web, will eventually make traditional textbooks obsolete, just as Wikipedia killed off the encyclopedia. The difference is that nobody I know ever had a college professor who said, "If you don’t read the encyclopedia, you’ll likely fail this class." If we ever want to bring the cost of these books under control, the faculty need to become responsive to the problem. Which of the following statements is true according Paragraph three
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