题目内容
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Why may the repair process of the DNA finally fail？
A．Because shortwave radiant energy breaks the strands of the DNA.
B．Because the DNA may produce a colony of cancer cells.
C．Because enzymes work to rearrange the DNA into a new order.
D．Because the patient is exposed to UV from time to time.
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更多“Why may the repair process of …”相关的问题
Why does the repair process of the DNA may finally fail？
A．Because short-wave radiant energy breaks the strands of the DNＡ.
B．Because the DNA may produce a colony of cancer cells.
C．Because enzymes work to rearrange the DNA into a new order.
D．Because the patient is exposed to UV form. time to time.
Why are some scientists interested in studying aging problem？
A．They want to increase the general ability of our bodies．
B．They may be able to find a better way of our life．
C．If they can pin down the biochemical process that makes us age, there will be hope for extending the length of life．
D．They want to find out if there is a link between how efficiently a cell could repair itself and how long a creature lives．
Why are some scientists interested in studying aging problem？
A．They want to increase the general ability of our bodies．
B．They may be able to find a better way of our life．
C．If they can pin down the biochemical process that makes us age,there will be hope for extending the length of life．
D．They want to find out ifthere is a link between how efficiently a cell could repair itself and how long a creature lives．
Why are some scientists interested in studying senescence？
A．They want to increase the general ability of our bodies.
B．They may be able to find a better way to our life.
C．If they can pin down the biochemical process that makes us age, there will be hope for extending the length of life.
D．They want to find out ff there is a link between how efficiently a cell could repair itself and how long a creature lives.
Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： Books which give instructions on how to do things are very popular in the United States today. Thousands of How to books are useful. In fact, there are about four thousand books with titles that begin with the word how to earn more money, another may tell you how to save or spend it, and another may explain how to give your money away.
Many how to books give advice on careers. They tell you how to choose a career and how to succeed in it. If you fail, however, you can buy a book called How to Turn Failure into Success. If you would like to become rich, you can buy the book How to Make a Millionaire. If you never make any money at all, you may need a book called How to Live on Nothing.
One of the most popular types of books is one that helps you with personal problems. If you want to have a better love life, you can read How to Succeed in Love Every Minute of Your Life. If you are tired of books on happiness, you may prefer a book called How to Make Yourself Miserable.
Many of these hooks help people use their time better. Some people want hooks which will give them useful information about sports, hobbies and travel. Other people use their free time to make repairs and improvements on their homes. They prefer books which give step by step instructions on how to repair things, or how to redecorate or charge a house.
Why have how to books become so popular？ Probably because life has become so complex. Today people have far more free time to use, more choices to make, and more problems to solve. How to books help people deal with modem life.
(27)
A．How to earn more money.
B．How to save money.
C．How to give your money away.
D．How to spend money.
听力原文： Hello, this is Jack in technical services. I am calling you to let you know that we were able to fix the problem with your computer. It should no longer randomly reboot. We would like to return your computer today. Please email or call me at 386-2626. If I'm not available you can also contact Lisa, our coordinator, at 386-2489 to let us know what time would be convenient. Or you may stop by the service desk and speak with Bob.
Why is the call being made？
A．To inform. on the status of the problem.
B．To request a reply.
C．To place an order.
D．To repair the computer.
The fundamental equation is a combination of the First and Second Laws. It shows the change in internal energy that accompanies changes in the volume and entropy of a system.
Why the following equation can be considered the fundamental equation of chemical thermodynamics？
A、Because G may be best regarded as a function of p and T.
B、Because p and T are usually the variables under our control in chemistry.
C、Because G combines the First and Second Laws in a convenient way for chemical applications.
D、All the above
Tomas Rodriguez
65 Econo Lane,
Lexington, VA 24450
Phone: (801)225-8649
October 21
Arcadian Clock Co.
Warranty Department
6531 West Board Street,
Richmond, VA 23230
To whom it may concern,
As my watch (model: 5M43-0B19, S/N: 6D8256) was clearly in need of repair, I recently took it to the Lexington Repair Center where the defective components in the watches are repaired. To my surprise, my request for the repairs to be billed to your company was declined in spite of the fact that there are still three years remaining in the coverage period. As there are no other authorized service centers in my area, I decided to pay for the repairs myself.
The following are the charges billed by the service center:
Parts:
New mainspring...........$23
New hour hand.............$8
New battery...................$5
Labor.............................$34
Total..............................$70
Showing prices including tax
I have included a copy of the receipt I got for the repairs and a copy of my warranty certificate. Please let me know if you need any additional information.
Regards,
Tomas Rodriguez
Warranty Certificate
Thank you for purchasing the 5M43-0B19 automatic watch. We are proud of our reputation for quality and customer service and our long history of providing fine timepieces to avid collectors around the world.
To maximize the performance of our products, Arcadian clocks and watches are made with the highest-quality materials available. However, should the product malfunction within five (5) years of the date of purchase due to a mechanical defect, we will cover the cost of repairs. Please note, however, that this warranty covers the cost of parts and labor only. Shipping, insurance, and batteries may not be claimed under this warranty.
In the event that the product requires repair or some other service, please take or ship it to one of the Arcadian's authorized service centers. The centers are equipped with state-of-the-art equipment to provide our customers with a wide variety of repairs and services that are performed according to Arcadian's professional standards. Please see the enclosed list of authorized Arcadia distributors and service centers in your country.
Why did Mr. Tomas Rodriguez write the letter？
A．To request a replacement for his broken watch
B．To request a copy of his warranty certificate
C．To ask for repayment of his expenses
D．To complain about an error on his bill
Why can't the store repair the recorder for free？
A．The man bought the recorder in another store.
B．His warranty has run out.
C．The recorder is beyond repair.
D．The recorder has been repaired.
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