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问题 单项选择题

肾结核最常见的晚期并发症是

A．自截肾

B．膀胱 * * 瘘

C．膀胱直肠瘘

D．附睾结核

E．膀胱挛缩和对侧肾积水

答案

参考答案：E

解析：[解题思路] 肾结核晚期，膀胱病变严重，广泛纤维化时，可形成膀胱挛缩，容量不足50ml。此时多数有健侧输尿管开口狭窄或"闭合不全"，从而形成肾结核对侧肾积水。

单项选择题

A proven method for effective textbook reading is the SQ3R method developed by Francis Robinson. The first step is to survey (the S step) the chapter by reading the title, introduction, section headings, summary and by studying any graphs, tables, illustrations or charts. The purpose of this step is to get an overview of the chapter so that you will know before you read what it will be about. In the second step (the Q step), for each section you ask yourself questions such as "What do I already know about this topic" and "What do I want to know" In this step you also take the section heading and turn it into a question. This step gives you a purpose for reading the section. The third step (the first of the 3 R’s) is to read to find the answer to your questions. Then at the end of each section, before going on to the next section, you recite (the second of the 3 R’s) the answers to the questions that you formed in the question step. When you recite you should say the information you want to learn out loud in your own words. The fifth step is done after you have completed steps 2, 3 and 4 for each section. You review (the last of the 3 R’s) the entire chapter. The review is done much as the survey was in the first step. As you review, hold a mental conversation with yourself as you recite the information you selected as important to learn. The mental conversation could take the form of asking and answering the questions fromed from the headings or reading the summary, which lists the main ideas in the chapter, and trying to fill in the details for each main idea.

According to the passage, the first step helps the readers（）

A. read first several paragraphs

B. scan the whole chapter

C. study the graphs

D. get the theme of the chapter
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单项选择题

下列有关注塑机各组成部分作用描述错误的是（）

A、注射装置主要作用是塑化物料，注射物料

B、合模装置主要作用是实现模具的开、合，并锁紧

C、液压系统和电控系统主要作用是保证注塑机按工艺要求和动作程序准确有效地工作

D、冷却系统只起到冷却制品，使制品定型的作用
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