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[复合型非选择题]患者，男性，30岁，诉搬重物后腰痛2天，伴右侧下肢后部放射性疼痛，为持续性钝痛，阵发性加剧，行走可诱发加重。查体示腰部局限压痛，右侧Lasegue征阳性，右足背外侧感觉略减退，双侧膝腱和跟腱反射正常对称。X线片示L椎间隙略窄

该患者最可能的诊断为（）

A.急性腰扭伤

B.腰肌劳损

C.臀部纤维组织炎

D.髋关节炎

E.腰椎间盘突出症

答案

参考答案：E

单项选择题

下列哪项胸液检查结果最支持恶性胸腔积液（）。

A.RF1：160阳性

B.LDH490IU/L

C.ADA26U/L

D.CEA20μg/L

E.葡萄糖3.36mmol/L
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单项选择题

Throughout the 19th century and into the 20th, citizens of the United States maintained a bias against big cities. Most lived on farms and in small towns and believed cities to be centres of (1) , crime, poverty and moral (2) Their distrust was caused, (3) , by a national ideology that (4) farming the greatest occupation and rural living (5) to urban living. This attitude (6) even as the number of urban dwellers increased and cities became an essential (7) of the national landscape. Gradually, economic reality overcame ideology. Thousands (8) the precarious (不稳定的) life on the farm for more secure and better paying jobs in the city. But when these people (9) from the countryside, they carried their fears and suspicions with them. These new urbanities, already convinced that cities were (10) with great problems, eagerly (11) the progressive reforms that promised to bring order out of the (12) of the city.

One of many reforms came (13) the area of public utilities. Water and sewerage systems were usually operated by (14) governments, but the gas and electric networks were privately owned. Reformers feared that the privately owned utility companies would (15) exorbitant (过渡的) rates for these essential services and (16) them only to people who could afford them. Some city and state governments responded by (17) the utility companies, but a number of cities began to supply these services themselves. (18) of these reforms argued that public ownership and regulation would (19) widespread access to these utilities and guarantee a (20) price.

17（）

A.degenerating

B.generating

C.regenerating

D.regulating
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