问题 单项选择题

患者,男,34岁,心悸、腹胀,胸片如图,最可能的诊断是()

A.心包积液

B.缩窄性心包炎

C.扩张性心肌病

D.肥厚性心肌病

E.风湿性心脏病二尖瓣狭窄

答案

参考答案:B

解析:

缩窄性心包炎X线平片显示心脏大小正常或轻度增大,心缘不规则、僵直、可见钙化,上腔静脉增宽,肺淤血等。钙化为本病的特征性表现。

填空题
单项选择题

There (1) not one type of reading but several according to your reasons for reading. To read carefully, you have to (2) your reading speed and technique (3) your aim (4) reading. Skimming is a technique necessary for quick and efficient reading.

When skimming, you (5) the reading (6) quickly in order to get the (7) of it, to know how it is organized, (8) an idea of the tone or the intention of the writer. Skimming is (9) an activity which (10) an overall view of the text and (11) a definite reading competence.

Skimming doesn’t need reading all the material, but it doesn’t mean that it is an (12) skill for the lazy, because it need a high degree of alertness and concentration.

When you read, you usually start with (13) understanding and move towards detailed understanding rather than working the other way round. But (14) is also used after you have already carefully studied and you need to (15) the major ideas and concepts.

In order to be able to skim quickly and (16) through a text, you should know where to look for what you want. In preview skimming you read the introductory information, the headings and subheadings, and the summary, if one is provided. (17) this skimming, decide whether to read the material more thoroughly, and select the appropriate speed (18) you read.

The same procedure (19) for preview skimming could also be used to get an overview. Another method would be to read only key words. This is done by omitting the unnecessary words, phrases, and sentences.

In order to skim efficiently and fulfill your purpose, (20) practice is necessary.

6().

A.substance

B.resource

C.source

D.material