在机组上进行焊接时，（）。 A.控制开关在on位 B.断开电池的负极 C.开启手动关

依据《建设工程施工合同(示范文本)》规定，投料试车工作应在工程竣工( )。

A．验收后由发包人负责

B．验收前由发包人负责

C．验收后由工程师负责

D．验收前山工程帅负责

下列对名著的评述有错误的一项是[ ]

A．《钢铁是怎样炼成的》主人公是奥斯特洛夫斯基，在他身上凝聚着为理想而献身的精神、钢铁般的意志和顽强奋斗的高贵品质。

B．《水浒》生动描写了梁山好汉们从起义到兴盛再到最终失败的全过程，主要人物有宋江、林冲、鲁智深、武松等。

C．《繁星》《春水》的作者是中国现代女作家冰心，她在作品中把母爱视为最崇高最美好的东西，反复加以歌颂。

D．《骆驼祥子》中，祥子最大的梦想就是拥有一辆属于自己的车，但他的希望一次又一次破灭，他与命运的抗争最终以惨败告终。

下图是人体内分泌系统图，根据你掌握的知识，填出数字所指的器官名称：

①______，②_______，③_______，④______，⑤_______，⑥_______。

图Ⅲ—50所示钻镗组合机床的精度检验项目为______。

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.

20().

A.a number of

B.an amount of

C.many

D.a few