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道路交通安全设施中，设置()的目的是给道路通行人员提供确切的信息，保证交通安全畅通。
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危险化学品安全技术
本部分共10小题，每小题1分。每题的备选项中只有一个最符合题意。
危险化学品中毒、污染事故预防控制措施中，控制作业场所中有害气体、蒸气或粉尘最有效的措施之一是()。
根据《输油管道设计工程规范》规定，与高压输电线交叉敷设时，距输电线()m范围内不应设置阀室及可能发生油气泄漏的装置。
听力原文：M: Hi, Grace. Mind if I eat lunch with you？
W: No. Mr. Evans, not at all.
M: Thanks. I just heard that you're studying nutrition and you've got quite a bit of experience working in the cafeteria, so I wonder if you will be interested in a small project we are doing this term.
W: What's the project all about？
M: More and more students have been deciding not to buy the meal here and we want to attract them back. So I want to hear what students would like. Your job would be to find out.
W: Well, if the menus were changed, then maybe I wouldn't have to listen to so much criticism.
M: That makes you perfect for the job. Would you be interested？
W: I'm not sure. What sorts of changes are you thinking of？
M: I'd like to make some changes in the way we prepare our food. For example, just look at what we have to choose from today. You got a fried hamburger and I got fried chicken. They both contain too much fat.
W: But you'd better not get rid of them. They're everybody's favorite.
M: Well, we can certainly keep them, but we need to give the people who are health-conscious some choices. For example, we could also prepare chicken without the fatty skin and serve it on some rice with a light sauce. Do you think that would appeal to students？
W: Well, I'd like that. You're right. You'd better find out what others think. Sorry, I've got to get back to work. I'd like to hear more though. I'll drop by your office later. M: Ok, see you then.
(23)
Break-up
Once in a person's lifetime, everyone finds this one perfect person whom they fall hopelessly in love with and live happily ever after. That is a mere fallacy, in the real world, this simply does not happen. Yes, people do have common interests and therefore develop romantic involvement, but it is basic common sense that these relationships have a life span and simply cannot last. Real life relationships are definitely more like "The Real World" rather than "Romeo and Juliet".
Romanticism is wonderful in itself, and thus two people can live in heavenly bliss, but it all must come to an end somehow. It is a fact of life that couples do break up, and there are many reasons why. There are countless-reasons, ranging from cheating to abuse, attributing to breakups.
Wealth
One reason why couples might break up is money or a lack thereof. If one partner in a relationship is always paying or keeping up all the bills, his/her partner just might grow tired of it and decide that it is a valid reason to separate. For example, a woman who is al ways lending her boyfriend money for his rent, car note, and social expenses will probably eventually grow tired of it and leave him.
Addiction
More reasons why couples separate, addictions often result in ugly breakups. Whether it is an addiction to drugs, gambling, or whatever, hardly anyone would be willing to take that on an everyday basis. Most people would agree that it is not pretty to see someone throw their life away on addictions. It is simply not attractive and thus, not many people would want to be with someone with an extreme problem like that.
Physical Assets
An unfortunate reason for a breakup, physical disabilities, also occurs at times. This can range from a paralyzing accident to infertility. To some people, having children is the most important priority in their adult life. Having a partner whom is unable to have children can very much hinder a relationship. Thus, it will not last. Likewise, having a partner who has a paralyzing disability might be too much for someone to take. Being with a person, who becomes handicapped, though unfortunate, is a big burden to place on a per son.
Test of Time and Distance
Growing apart, an instance in which two people just do not feel attraction towards each other anymore is very commonplace, resulting in an end of a relationship. Some couples simply "fall out of love". Some people can only stand so much of another person be fore they grow tired of the situation. Also, it could be as a result to distance. For exam ple, when a couple who were together in high school go their own ways in choosing colleges, this, most often than not, results in the couple breaking up. A long distance relation ship like that simply that does work out often.
"l Want the Better. '
In direct relation to growing apart, a person sometimes finds another person besides their boy/girlfriend who they are attracted to. Finding somebody "better" will kill a relationship quickly, and start a new relationship. If a person finds someone more attractive than the person they are currently with, they might have to weigh their options and decide that they want to go another direction.
Cheating
Likewise, when a person finds someone they like, this could result in cheating, another reason why couples break up. If a guy catches his girlfriend is cheating on him, or vice versa, this could very well be a valid reason to end that relationship. Finding someone cheating leads to a lack of trust and thus, kills the relationship.
Abuse
Also, another very serious reason resulting in a break-up is abuse. When someone abuses his or her girlfriend, spouse, or children, a break-up is definitely necessary. Some one who is taking abuse is playing with fire by letting it go on. They are simply risking their lives, and thus, they need to let
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