有关急性腹痛的病因下列错误的是A．腹腔器官急性炎症 B．空腔脏器阻塞或扩张 C．腹膜

企业在进行日常经营活动中的应收账款应包括（）项目。

A．预收账款

B．其它应收款

C．应收票据

D．应收销售款

( )采用横线登记式明细账。

A．原材料明细账

B．主营业务收入明细账

C．财务费用明细账

D．物资采购明细账

常用于沉淀分离季铵碱的试剂是（）

A.碘化铋钾

B.碘化汞钾

C.苦味酸

D.硅钨酸

E.雷氏铵盐

人们在从事某种活动前的心理准备状态称为（）。

A.迁移

B.定势

C.态度

D.动机

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.

1().

A.is

B.are

C.was

D.were