个人住房贷款“假按揭”是指事业单位职工或者其他关系人冒充客户，通过虚假购买的方式套取

小王用凸透镜、蜡烛、光屏和光具座等器材，探究凸透镜成像的规律。实验桌上现有凸透镜的焦距为10cm.光具座上标尺的刻度范围如图。

小王在上图的光具座上，不断改变蜡烛与透镜间的距离，并移动光屏进行实验，所获得的实验数据如右表所示。分析实验数据可知：

实验次序	物体到凸透镜的距离u/cm	光屏上像到凸稼镜的距离v/cm	光屏上像的大小
1	60	12	缩小
2	30	15	缩小
3	20	20	等大
4	15	30	放大
5	12	60	放大

（1）从实验次序2、3、4可以看出，当成实像时，物体到凸透镜的距离越短，光屏上像的大小就越           ；

（2）同一凸透镜，成实像时，像距v随物距u的增大而          。

（3）你认为小王同学的记录过程是否全面?请提出你的一种看法。

理想变压器原线圈接在如图所示的电压上，原副线圈匝数之比为10：1，串在原线圈上的电流表的示数为1A，则以下叙述正确的是（　　） A．变压器输出功率为200W B．若n1=100匝，则输出端线圈的磁通量变化率的最大值为2Wb/s C．副线圈两端的电压表示数20V D．变压器的输入功率是由发电厂的输出功率决定的

装有轨道电路时，信号机应与（）设在同一坐标处。

阅读理解。

     Learning to save money when you're young is an important lesson. All good lessons and habits begin

early, and saving is a skill that everyone needs. Many people-adults included-do not have a good sense of

saving for the long run.

     I have been lucky to learn this lesson early because I have had a grass-cutting business since I was 10

years old. Of the money I make, I spend about 10 percent and save the other 90.

     Making sure you save and don't spend too much is a good way to build up wealth. I have put my

earnings in a bank. Many teens I know spend all the money they earn, so it never has a chance to grow.

Young people should realize that their teenage years are a great time to begin saving.

     At high school, many parents pay for almost everything, so your expenses can be small. If you have a

job, you should have fun with some of the money. But you should also save some so that it will grow. Then

you can begin planning for your future. When you spend money, you not only lose that money, but also lose

the interest you should have earned by saving it.

     After high school, college is expensive and then "real" life begins, with expenses such as food and rent. If

you can hold onto a good percentage of the money you earn as a teen, going to college and buying a house

will be much easier. The earlier you begin saving, the more time the money has to grow. If you are in your

thirties without any savings, you will always have to struggle, The earlier you begin saving, the easier it is to

create a nest egg (储备金).

1. According to the author, a man can build up his wealth by _____.

A. finding a good job

B. saving money when he grows up

C. buying a house

D. saving money and spending less

2. The author seems to believe _____.

A. it is hard to save money when in high school

B. if you have a job, you needn't save money

C. when spending one loses more than the money he pays

D. going to college will be easier if you borrow money from the bank

3. What can be the best title for the passage?

A. Saving for future

B. Learning to spend less

C. How to save money

D. How to make money

某化工厂位于某市北郊，西距厂生活区约500 m，厂区东面为山坡地，北邻一村，西邻排洪沟，南面为农田。其主要产品为羧基丁苯胶乳。生产工艺流程为：从原料罐区来的丁二烯、苯乙烯、丙烯腈分别通过管道进入聚合釜，生产原料及添加剂在皂液槽内配置好后加入聚合釜；投料结束后，将胶乳从聚合釜转移到后反应釜：反应结束后，胶乳进入气提塔，然后再进入改性槽，经调和后崩泵打入成品储罐。生产过程中存在多种有毒、易燃易爆物质。

为应对重大事故发生，该厂决定编制应急救援预案。厂长将该任务指派给安全科，安全科成立了以科长为组长，科员甲、乙、丙、丁为成员的五人厂应急救援预案编制小组。

编制小组找来了一个相同类型企业C的应急救援预案，将企业C应急救援预案中的企业名称、企业介绍、科室名称、人员名称及有关联系方式全部按本厂的实际情况进行了更换，按期向厂长提交了应急救援预案初稿。此后，编制小组根据厂长的审阅意见，修改完善后形成了应急救援预案的最终版本，经厂长批准签字后下发至全厂有关部门。

题目

该厂应针对哪些重大事故风险编制应急救援预案