某类疾病主要是由外伤引起，有明显的局部症状且常呈急性经过，多为混合感染，常发生化脓和

某婴儿出生时体重为3.5kg，生后5个月体重应是

A．6k8

B．5kg

C．9k8

D．7kS

E．8kg

商业汇票的付款期限，自出票日起计算，最长不得超过( )。

A．3个月

B．6个月

C．9个月

D．12个月

鼻咽癌放疗原发灶根治剂量一般应给予（）

A.30Gy

B.40Gy

C.50Gy

D.70Gy

E.80Gy

红霉素在何种组织中的浓度最高？（）

A.骨髓

B.胆汁

C.肺

D.肾脏

E.肠道

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.

14().

A.reading

B.understanding

C.working

D.skimming