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女，26岁，月经增多8个月，2周来牙龈出血，下肢皮肤散在出血点及淤斑，血红蛋白78g/L，白细胞5.0×109/L，血小板计数48×109儿。临床诊断为特发性血小板减少性紫癜。 该患者用糖皮质激素治疗，哪项说法正确( )
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患者女性，50岁。全身多发性周围关节疼痛，反复发作5年余，发作时伴有晨僵现象。活动后减轻，化验；血沉46mm/h，RF(+)。拟诊为类风湿关节炎。关于该患者的关节病变的叙述下列哪项不正确( )
Passage Five The agricultural revolution in the nineteenth century involved two things the invention of labor-saving machinery and the development of scientific agriculture. Labor-saving machinery naturally appeared first where labor was scarce. "In Europe", said Thomas Jefferson," the object is to make the most of their land, labor being abundant; here it is to make the most of our labor, land being abundant." It was in America, therefore, that the great advances in nine-teenth-century agricultural machinery first came. At the opening of the century, with the exception of a crude plow, farmers could have carded practically all of the existing agricultural implements (家具) on their backs; by 1860, most of the machinery in use today had been designed in an early form. The most important of the early inventions was the iron plow. As early as 1790 Charles Newbold of New Jersey had been working on the idea of a cast-iron plow and spent his entire fortune in introducing his invention. The farmers, however, would have none of it, claiming that the iron poisoned the soil and made the weeds grow. Nevertheless, many people devoted their attention to the plow, until in 1869 James Oliver of South Bend, Indiana, turned out the first chilled-steel (冷淬钢) plow. The expression "make the most of" in Line 4 is closest in meaning to which of the following（）
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(91～93题共用题干) 男性，55岁。1年来发作性心前区疼痛，每于劳累或生气时发作，向咽部放射，持续数分钟，可自行缓解。2周来发作较前频繁，未认真治疗。2小时前开始疼痛剧烈，部位同前，向左下颌放射，不能缓解。伴憋闷、出汗来急诊。 为明确诊断，进一步检查应首选
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