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女性患者，56岁，右上腹隐痛1个月余，伴腹胀，既往有乙型肝炎史。查体：肝病容，腹膨隆，肝肋下8cm，脾肋下4cm，移动性浊音阳性，腹水可见大量红细胞。 以下哪种实验室检查最有意义( )
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患者，男，50岁，蛋白尿5年，乏力、恶心2个月，平时血压偏高，贫血貌，血压180/110mmHg，心、肺听诊无异常发现，血肌酐113μmol/L，临床诊断尿毒症。 最可能的病因是( )
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( )
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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