引入虚拟存储技术的关键前提是( )。A．程序执行的局部性原理 B．有大容量的外存

自动扶梯和自动人行道驱动站和转向站的哪些部位需要防护？

充填前牙楔状缺损的材料有多种，除外

A．复合体

B．银汞合金

C．流动树脂

D．玻璃离子粘固粉

E．光固化复合树脂

请绘制阴浮床流程图？

THE WAY TO READ FAST

Perhaps you have been told about some habits（习惯） which stop a person reading fast、and have been strongly asked to break those habits which you might have.

Do you still have any of these bad habits7 Check yourself by answering "yes" or "no" to

these questions:

1. Do you move your lips(嘴唇) when reading silently？

2. Do you point to words with your finger as you read?

3. Do you move your head from side to side as you read?

4. Do you read one word at a time?

If you answer "yes" to any of these questions, start at once to break the habit.

If you move your lips, hold your fingers over them, or hold a piece of paper between your lips while you are reading. Then if your lips move, you will know it and can stop them.

If you point to words, hold the two sides of your book, one side with your left hand, the other side with your right hand. Then you will not have a free finger to use in pointing while reading.

If you move your head, place your chin（下巴）in one hand, and hold your head still(不动地，静止地).

If you read no more than one or two or three words at a time, you need to work very hard in learning to take in more words at each glance(看一眼) as your eyes travel across the lines of words.

小题1:You may hold your fingers over your lips while reading       

A．to hold a piece of paper between them

B．to stop yourself talking to others

C．to tell others to be silent

D．to feel whether y our lips move or not小题2:When your eyes travel across the lines of words,        

A．you need to read the words out

B．you need to look at every word carefully

C．you need to read several words at a time

D．you need to remember every word小题3:When you read,        

A．don’t use your finger to point to words

B．don’t hold your books with your hands

C．don’t hold your head still

D．don’t do any of the things mentioned(提到)above.

某集团公司项目部承建一段新建单线铁路线下工程，该段起止里程为DK40+000～DK55+380，施工工期为三年，交通不便，主要工程有：特大桥一座，起止里程DK40+000～DK43+100，覆盖层为中、粗砂层，主跨跨越一河流，水深4-6米，主跨为3×96米钢桁梁，水中墩基础为直径1．5米钻孔桩，高桩承台。隧道两座（均无辅助坑道），1#隧道起止里程为DK43+900～DK49+020，全隧道为Ⅲ级围岩：2#隧道起止里程为DK49+120～DK53+700，隧道进、出口段为堆积体，其余为II1、Ⅳ级围岩。两座隧道均采用有轨运输、钻爆法施工。本段铁路除桥、隧外，其余为路基工程。

根据背景资料，项目部在落实责任成本方面宜采用哪些措施？