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问题 单项选择题 A1/A2型题

肝血窦的特点包括（）。

A.内皮细胞无孔，有基膜

B.内皮细胞有孔，无基膜

C.内皮细胞无孔，无基膜

D.内皮细胞有孔，有基膜

E.以上均不是

答案

参考答案：B

解析：肝血窦内皮细胞有孔，但孔上无隔膜，内皮外无基膜。

单项选择题

A good modern newspaper is an extraordinary piece of reading. It is remarkable first for what it contains the range of news from local crime to international politics, from sports to business to fashion to science, and the range of comment and special features (特定) as well, from editorial page to feature articles and interviews to criticism of books, art, theatre and music. A newspaper is even more remarkable for the way one reads it never completely, never straight through, but always by jumping from here to there, in and out glancing at one piece, reading another article all the way through, reading just a few paragraphs of the next.
A good modern newspaper offers a variety to attract many different readers, but far more than any one reader is interested in. What brings this variety together in one place is its topicality (时事性), its immediate relation to what is happening in your world and your locality now. But immediacy and the speed of production that goes with it mean also that much of what appears in a newspaper has no more than transient (短暂的) value.
For all these reasons, no two people really read the same paper: what each person does is to put together out of the pages of that day’s paper, his own selection and sequence, his own news paper. For all these reasons, reading newspapers efficiently, which means getting what you want from them without missing things you need but without wasting time, demands skill and self-awareness as you modify and apply the techniques of reading.

A good newspaper offers a variety to readers because ______.

A. it tries to serve different readers
B. it has to cover things that happen in a certain locality
C. readers are difficult to please
D. readers like to read different newspapers
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单项选择题

结构化分析方法(SA)是结构化程序设计理论在软件需求分析阶段的运用，它的一个重要指导思想是 。

A．自顶向下，逐步分解
B．自底向上，逐步抽象

C．自顶向下，逐步抽象
D．自底向上，逐步分解
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