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题目：
选择题
下列哪种药属于保钾利尿药：
- A. 利尿酸
- B. 氨苯喋啶
- C. 呋喃苯胺酸
- D. 氢氯噻嗪
答案：
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有关24小时食管pH监测参数不正确的是（）
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满足自身及家庭成员的需要而商品或服务的个人是指（）。
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下列关于土地使用权出让的期限的说法中，正确的是（ ）。
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欲进行肺癌危险因素的病例对照研究，下列不能作为对照的是（）
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根据材料，完成题。 Fitness Movement The fitness movement that began in the late 1960s and early 1970s centered around aerobic exercise.Millions of individuals became engaged in a variety of aerobic activities, and51thousands of health spas developed around the country to capitalize on his52interest in fitness, particularly aerobic dancing for females. A number of fitness spas existed53to this aerobic fitness movement, even a national chain with spas in most major cities. However, their54was not on aerobics, but rather on weight-training programsdesigned to develop muscular mass, 55, and endurance in their primarily male56. These fitness spas did not seem to benefit57from the aerobic fitness movement to better health, since medical opinion suggested that weight-training programs58few, if any, health benefits. In recent years, however, weight training has again become increasingly. 59for males and for females. Many60programs focus not only on developing muscular strength and endurance but on aerobic fitness as well.61, most physical fitness tests have usually included measures of muscular strength and endurance, not for health related reasons, butprimarily62such fitness components have been related to performance in athletics.63, in recent years,evidence has shown that training programs designed primarily to improve muscular strength and endurance might also offer some health64as well. The American College of Sports Medicine now65that weight training be part of a total fitness program for healthy Americans.请在第__(51)__处填上正确答案。
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国防建设是经济建设的基础，经济建设的发展程度最终取决于国防建设的发展。
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世界银行即国际复兴开发银行是最早建立的政府间国际金融机构。( )
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患者男，34岁。发热1周伴胸痛，用硝酸甘油无效。体检：心界向两侧扩大，心率115次／分，心音低沉，有舒张期附加音，血压110/80mmHg(14.7/10.7kPa)，肘部静脉压l80mmH2O，心电图：ST段抬高，弓背向下，未见病理性Q波，诊断可能为（）
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用四桩柱接地绝缘电阻表，测量土地电阻率，四个电极布置在一条直线上，极间距离L为11m，测得接地电阻R为10Ω，求土地电阻率。
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矿井供电的三无是指无鸡爪子、羊尾巴、无（）