题目
题型:不详难度:来源:
When implemented (实现) in a cellular telephone system, CDMA offers numerous benefits to the cellular operators and their subscribers (订户). Following is an overview of CDMA benefits:
1. Improved call quality, with better and more consistent sound.
2. Simplified system planning through the use of the same frequency in every sector of every cell.
3. Increased talk time for portables.
4. Bandwidth on demand.
Compared with GSM ( Global System for Mobile communication ), which was developed mainly in Europe, the CDMA system matured (成熟) later and has better efficiency, low radiation, high voice quality and ability to adopt third-generation communications technology.
China, Indonesia, Japan, South Korea and now India will make up the major market for CDMA technology in addition to the United States, the Republic of Korea, Japan and Australia to ensure that CDMA users can receive phone calls from overseas.
56. Which of the following statements is TRUE?
A. CDMA has a clearer and higher sound than GSM.
B. You will not hear a better and more consistent sound if you don"t use CDMA.
C. CDMA has the ability to adopt third-generation communications technology.
D. The original signal cannot satisfy the demand for bandwidth.
57. Which of the following statements is NOT true?
A. CDMA has low radiation and high voice quality.
B. CDMA can help you to have a long-time talk.
C. China and some Asian countries will have a large market for CDMA technology in future.
D. It"s much simpler to use CDMA than GSM.
58. What is the main idea of this passage?
A. Compared with GSM, CDMA has more benefits.
B. Some information on CDMA and its advantages.
C. CDMA will probably take the place of GSM some day.
D. CDMA is more effective and healthy.
答案
解析
核心考点
试题【 CDMA is " spread spectrum (频谱) " technology, which means that it spreads the】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
For the last fourteen years CPSB has had the pleasure of hosting a learning event we call a Forum. We started offering programs in Sarasota in February in 1991 and our first Forum was held in 1992 as a small group meeting. Being from the Northern USA, this was a particularly good time to go south for the warmth of our friendship with Dr. Treffinger and Dr. Noller and to keep away from the cold winter.
The Forum is the only chance to learn about various topics of the creativity and innovation (革新)and from those who have rich experience and interest in the field. The theme of the 2005 Forum includes searching for a few new methods, sharing lessons from experience, and learning and exchange ideas on cutting-edge research. Space is limited, so early registration (登记)is welcome.
Meeting the Innovation Challenge
February 6 and 7,2005 Lido Holiday Inn
Sarasota, Florida
$ 750 (registration includes some meals and materials)
Interested in becoming qualified to use the VIEW assessment (评估)of Problem Solving Style? The two days just before our Forum provides you just that chance. For more information on VIEW see pages 24-25.
VIEW Qualification Course
February 4 and 5, 2005 Lido Holiday Inn
Sarasota, Florida
$650 (registration includes lunch and course materials)
Special Offer: If you would like to attend the VIEW qualification course and the Forum, you can register for both events for $ 1050.
63. According to this advertisement, at the Forum people _______.
A. come together in order to form an organization
B. express different opinions and discuss public matters
C. eat together to celebrate their success or victory
D. work together for the purpose of business or trade
64. If you register both the VIEW qualification course and the Forum at the same time, you will save _______.
A. $100
B. $300
C. $350
D. $400
65. The underlined sentence “Space is limited, so early registration is welcome” means ______.
A. space is limited, so you can’t register now
B. space is too limited for you to register
C. you’ll lose the good chance if you don’t register soon
D. you’ll be given a special offer if you register now
66. The main purpose of this advertisement is to ______.
A. encourage more people to attend the Forum in time
B. promise everyone can pay less money to attend the Forum
C. call on the people in the north of the USA to go south for holidays
D. introduce some new activities and topics of the Forum
questions.
What is interesting to me?
You can connect ainroot any topic to science, Your topic could be plants, worms,dogs,the sky or something else.If you can not think of a topic,search books or the Internet for ideas .Seek help from your teacher or a librarian.Your parents may have some good thoughts too.
What question do I have about this topic?
A great science project always includes an experiment.Make sure that your question can be
answered through an experiment.Here are some examples of questions:Does the amount of light have an effect on how fast plants grow?How much salt is in different kinds of cookies sold at the store? Why does the sky change color at different times of the day?
How much time do I have before the scienc fair?
A great science project always includes an experiment. Make sure that your question can be answered throuth an experiment, Here some examples of questions,Does the amount of light have an effect on how fast plants grow? How much salt is in different kinds of cookies sold at the store? Why does the sky change color at different times of the day?
How much time do I have before the science fair?
A science fair to be held in two weeks will not give you time for some experiments ,such as growing plants, carefully plan your project so that you allow enough time to perform your experiment accrately.
What do I think is the answer to my question?
Why do I think this? The answer you choose is your hypothesis,You will prove it right or wrong by perfoming an experiment,. If you were to think about the sky question, your hypothesis might be that the color of the sky is related to the position of the sun,
How can I prove my hypothesis?
This is where the experiment comes in.You have to test your hypothesis.If you wanted to find out how light affects plant growth,you could plant seeds in a number of containers.Then you could expose the plants to different amotmts of light and compare the growth rates.
How can I present my results?
You might display your question and hypothesis on poster boards.You might then add pictures and graphs.A great science project also states a conclusion.A conclusion of the plant experiment might be The plants that got the most light grew the fastest.
When you have finished your project,you may have more questions.A great science project makes you want to learn even more.
64.A great science project always includes .
A.plants in pots B.results
C.an experiment D.poster boards
65.A hypothesis is a(n) .
A.question B.idea C.performance D.proof
66.We can learn from the passage that .
A.all science projects take about the same amount of time
B.a science project involves several steps
C.a science project should start with a conclusion
D.a science project raises many questions
67.To find out whether cold water freezes faster than hot water,you would first .
A.make a chart to explain your steps
B.state your conclusion to convince other people ,
C.think of an experiment to give an answer
D.display your hypothesis to prove
Reading level: Baby—reschool
Hardcover: 16 pages
Language: English
Availability: In Stock.Sold by Amazon-com.Gift—wrap available.
Book Description: It"s bath time for Scruff.But does anyone know where he"s hiding? Have the cows seen him? Moo—no! How about the pigs? Oink—no! But not for toddlers.If they look carefully, they"ll find Scruffhiding on every pop—up page!
■You and Me, Baby
Reading level: Baby—Grade 1
Hardcover: 40 pages
Language: English
Availability: In Stock.Ships from and sold byAmazon.com.Gift—wrap available.
Only 4 left in stock—rder soon.
■The Giving Tree
Reading level: Ages 4~8
Hardcover: 64 pages
Language: English
Availability: Sold all the year round and choose One—Day Shipping at checkout.
Book Description: Once there was a tree...and she loved a little boy.Every day the boy would come to the tree to eat her apples, swing from her branches, or slide down her trunk...and the tree was happy.
■Where the Wild Things Are
Reading level: Ages 6~10
Hardcover Comic: 62 pages
Language: English
Availability: In Stock.Ships from and Sold by Amazon-com.Gift—wrap available.Order it at once, and choose One—Day Shipping at checkout.
■Goodnight Moon(Board book)
Reading level: Baby—Preschool
Board book: 30 pages
Language: English
Availability: In Stock.Ships from and sold by Amazon-com.
Book description: Perhaps the perfect children"s bedtime book.Goodnight Moon is a short poem of goodnight wishes from a young rabbit.He says goodnight to every object in sight and within earshot, including the "quiet old lady whispering hush."
小题1:If you want a book for an eight-year-old, which one will you choose?
A.You and Me, Baby | B.Where the Wild Things Are |
C.Goodnight Moon | D.Ruffi Ruff! Where"s Scruff? |
![](http://img.shitiku.com.cn/uploads/allimg/20191210/20191210191801-45598.gif)
A.Where the Wild Things Are | B.Goodnight Moon |
C.Ruff! Ruff! Where"s Scruff? | D.The Giving Tree |
A.Where the Wild Things Are | B.You and Me, Baby |
C.RuffS Ruff! Where"s Scrufl? | D.Goodnight Moon |
A.The Giving Tree | B.You and Me, Baby |
C.Goodnight Moon | D.Where the Wild Things Are |
A.abundant | B.secure | C.available | D.valid |
![](http://img.shitiku.com.cn/uploads/allimg/20191210/20191210191724-20987.jpg)
Frequently Asked Questions
What is TEENSGIVING?
TEENSGIVING is an exciting event where hundreds of New York City teens gather together annually for a remarkable day of community service. This year, TEENSGIVING in SPRING 2010 participants will once again better New York City and impact thousands of lives!
When is TEENSGIVING in SPRING 2010?
SUNDAY, APRIL 25, 2010
Where is TEENSGIVING?
All over New York City. Everyone will meet at the 92nd Street Y (92nd and Lexington) at 9:00 AM for the event kick-off. Then, all TEENSGIVING volunteers will disperse across the city to work with our partnering agencies where they will make a HUGE difference (and have fun!).
Who participates in TEENSGIVING?
Hundreds of teenagers from around the city. Teens come from the 92nd Street Y, various city schools, youth groups, and organizations in the area. In addition, many adult volunteers (ages 21 and older) will donate their time to TEENSGIVING in SPRING 2010.
What projects do participants do at the agencies?
Sample projects include painting park benches, planting gardens, visiting and playing with underprivileged children, assembling craft kits for children in hospitals, assisting at animal shelters, working at soup kitchens, delivering meals and celebrating with families at homeless shelters.
Do I get anything for participating in TEENSGIVING?
Yes! Everybody benefits! Teen volunteers will receive *6 hours* of community service credit, good towards honor society, high school graduation and college application requirements. Adult volunteers will be “thanked” with a light breakfast, a gift certificate for their troubles, and the satisfaction of helping our city’s youth contribute to their community. In addition, all teen and adult volunteers will receive a cool TEENSGIVING in SPRING 2010 T-shirt.
This sounds awesome! How do I register for TEENSGIVING in SPRING 2010?
Interested teens and/or adults should e-mail the TEENSGIVING Coordinator Josh Hyman at jhyman@92Y.org (subject: TEENSGIVING) to receive more information and to register for this fantastic event!
**Teens can also contact their school’s Community Service Advisor**
TEENSGIVING is sponsored by the 92nd Street Y.
45. TEENSGIVING is an event held ____________.
A. from time to time | B. every year | C. every two years | D. twice a year |
A. watering flowers | B. cooking | C. cleaning streets | D. taking care of animals |
A. community service credit and a T-shirt |
B. a high school certificate and a light breakfast |
C. a T-shirt and a gift certificate |
D. a gift certificate and community service credit |
A. inform readers of some frequently asked questions |
B. introduce TEENSGIVING in SPRING 2010 to readers |
C. encourage readers to ask more questions about TEENSGIVING |
D. call on readers to participate in TEENSGIVING in SPRING 2010 |
SPECIALTY RETAIL STORES
Newslink: Two separate Newslink stores cater to all your reading needs including newspapers, magazines and the latest bestsellers.
Downtown Duty Free: Make sure you shop at Downtown Duty Free for great savings on a range of items including perfume, alcohol, skincare products and cigarettes. It"s your last chance before customs.
Beach Culture: A must for those into the latest beach clothing. Top fashion labels including Mambo, Stussy and Quicksilver, including children"s sizes.
DINING
Blue Sky Cafe: Speedy service leaves you time to keep an eye on the arrival gate. Fresh milk, coffee, lemon juice, beer, whisky, ice cream, soda water, cakes and dumplings are on sale.
MacDonald"s: hamburgers, fries, pancakes, roasted potatoes, muffins, Pepsi, Coca-cola and chocolates-all your family favorites. Breakfast is served until 10:30.
SERVICES
ATM: ATMs are conveniently located throughout Arrivals and Departures. Dollars, pounds, francs and RMB are all accepted.
Vodafone Rentals: This communications center offers the very latest technology for mobile phone rentals, sales and serving.
53.Where is the passage likely to appear?
A.In a morning newspaper. B.In a monthly magazine.
C.In a geography book. D.In an official guidebook.
54.The underlined phrase "cater to" probably means _______.
A.satisfy B.afford C.support D.help
55.According to the passage, you can draw ______ from ATMs.
A.dollars and yen B.pounds and RMB
C.RMB and rubles D.francs and euros
56.At Beach Culture you can probably buy _______.
A.newspapers and magazines B.skincare products and cigarettes
C.adult cotton T-shirts D.fresh juice and breakfast rolls
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