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患者男，62岁，因“尿急、排尿延迟、尿线变细、排尿时间延长2年，排尿困难加重伴尿痛、血尿2d”来诊。平时夜尿2次。2d来排尿困难加重，尿滴沥，并伴会阴部剧烈疼痛和终末肉眼血尿。泌尿系统B型超声：双肾输尿管未见异常，膀胱内可见2个强回声，直径分别为1.5cm和1.2cm，后伴声影，可随体位活动，膀胱黏膜未见异常；前列腺5.3cm×4.3cm×3.7cm；前列腺 * * 可见一个直径0.8cm强回声，后伴声影；残余尿20ml。

诊断有（）

A.膀胱肿瘤

B.后 * * 肿瘤

C.前列腺增生

D.膀胱结石

E.后 * * 结石

F.输尿管结石

G.前列腺癌

答案

参考答案：C, D, E

单项选择题

51岁患者，男性，持久的胸骨后疼痛，休克，心律失常，并伴有血清心肌酶增高以及心电图改变，初步诊断为急性心肌梗死，那么在被影响的心肌区域，下列哪种代谢途径发生改变

A．氧化磷酸化加快
B．脂肪酸氧化加快
C．丙酮酸转变为乙酰CoA加快
D．乳酸生成加快
E．酮体生成加快
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填空题

What is distance learning It means that you study on your own, at home or wherever suits you. Recently, the world famous Open University in the United Kingdom has designed a new style of distance learning, which is called (1) . The phrase "Open Learning" means you study (2) . You read course material, work on course activities, and write (3) . The word "Supported" means you have help (4) , the student services staff at regional centres, and centralized areas such as (5) . You can also contact other students through tutorials and (6) , the University’s online conferencing system, and events and clubs organized by (7) . Most distance learning courses use printed paper materials. They also include some (8) materials such as a CD, DVD or video. Many courses have a web site and an (9) . You’ll need access to a computer (10) to make use of these. The Open University can help its students buy a computer and (11) the cost of accessing the Internet.

With most distance learning courses, no (12) are required to study. of course, you have to be aged 18 when your course starts but there is no (13) . Currently the Open University has around (14) undergraduate and more than 30,000 postgraduate students, of which 10,000 have (15) . Nearly all students are studying (16) . About 70 per cent of undergraduate students are in (17) . More than 50,000 students (18) by their employers for their studies. Most distance learning courses (19) . Some of them are even available in other parts of the world. With over 25,000 of its students living outside the UK, the Open University is the (20) that offers distance learning throughout the world.

20（）
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