(三) 危险化学品安全技术动火作业必须经动火分析并合格后方可进行，取样时间与动火作业

下列各项反应的化学方程式、反应现象及反应类型均正确的是[ ]

　　化学反应   　　　　化学方程式 　　　　　　　反应现象     　　　反应类型 

A.用盐酸除铁锈  Fe₂O₃+4HCl===2FeCl₂+H₂O   　　　置换反应

B.水通电分解      2H₂O2H₂+O₂↑　　　　　　　产生气体　　　　　　分解反应

C.铁丝在氧气中燃烧   3Fe+2O₂Fe₃O₄ 　　　化合反应

D.碳还原氧化铜     2CuO + C==2Cu + CO₂↑   　黑色粉末变红    　　　　复分解反应

患者男，63岁，上下颌牙列缺失，原义齿折断，要求重新行全口义齿修复，查见患者牙槽嵴吸收较重，牙弓覆盖关系正常

对前牙排列近、远中向倾斜的要求，下列哪一项是错误的（）。

A.上中切牙长轴与中线平行或颈部稍向远中倾斜

B.上侧切牙颈部向远中倾斜

C.上尖牙颈部向远中倾斜程度介于上中切牙与上侧切牙之间

D.下侧切牙长轴与中线平行

E.下尖牙颈部向远中倾斜

家长对子女实施教育时所采用的具体措施、手段和各种影响方式的总和是指（）。

A.家庭教育目的

B.家庭教育内容

C.家庭教育方法

D.家庭教育原则

刘某，女，36岁，因分娩失血过多，而突然昏厥。面色苍白，口唇无华，四肢震颤，目陷口张，自汗肤冷，呼吸微弱，舌质淡，脉芤或细数无力。急用独参而灌服。

若出血不止者，选用下列何药不妥（）

A.仙鹤草

B.藕节

C.侧柏叶

D.生大黄

E.血余炭

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.

8().

A.getting

B.to get

C.got

D.have got