- Câu 8 : Sau khi đã chọn 1 ô , nếu muốn tách ô này thành nhiều ô , ta thực hiện :

A. Layout --> nhóm Merge --> Split Cells

B. Insert --> nhóm Merge --> Split Cells 

C. Layout --> nhóm Cell Size --> Split Cells

D. Insert --> nhóm Cell Size --> Split Cells

-Câu 18: Để sữa lỗi /gõ tắt ta thực hiện lệnh 

A. Tools-->Options--> Autocorrect Options

B. File-->Options-->Proofing-->Autocorrect Options

C. Home-->Options-->Proofing-->Autocorrect Options

D. Tools-->Options-->Proofing-->Autocorrect Options

it's the 1980s. Cell phone are toys for business people. They cost hundreds of dollars. They are very big, and very basic.

the batteries are only good for a fifteen-minute phone call. Teenagers make phone calls from home !

today, you can buy a cell phone for about $10, and 75% of american teenagers have one . They can talk for ten hours, but they can also

send text photos, take pictures, play music, play game, send e-mails, and more

88% of teenagers send text messages every day, and 25% of teens send more than 50 messages each month! And about 30% send more than 100 texts a day, or about 3,000 a month

send text messages 88%

take picture 83%

play music 60%

record video 54%

play game 46%

go online 27%

use social networking sites 23%

e-mail 21% 

1 how many American teens have a cell phone?

____________________

2 How much talk time does today's cell phone battery give you ?

____________________

3 how many teenagers send text messages every day?

______________________

4 how many teenagers send 3,000 texts a month ?

________________________

You're a biologist on a mission to keep the rare honeybee Apis Trifecta from going extinct. The last 40 bees of the species are in your terrarium. You've already constructed wire frames of the appropriate size and shape. Your frame is made by equalateral hexagons, and it's shape is like an equalateral triangle with 9 hex on each side of your frame.

Now you need to turn them into working beehives by filling every hex with wax. There are 2 ways to fill a given hexes:
1. Place a bee into the cell. On placed, you can't remove it without killing it.

2. If any unfill cell has 3 or more neighboring wax-filled hexes, the bees already in the hive will move in and transform it. Once the bees have transfomed every hex in the hive, you can add an aditional bee and it'll specialies into the queen. The hive, if been well cared for, will eventually produce new bees and continue the species.

    If there are no hexes with 3 or more transform neighbors, the bees will just sit and wait. And once a bee transform a hex, it will never become a queen.

You could put 40 bees in one wire hive, wait till they transform all the hexes, and then create a queen. But then just one collapses will end the species.

Question: At most how many queen bees you can make with 40 bees?

Read the passage below and decide whether the statements are TRUE or FALSE?

The overgrowth of cells leads to the development of tumors and the harmful effects of cancer. In lung cancer, this pattern of cell overgrowth occurs in the lungs, which are vital organs for breathing and gas exchange. Doctors typically diagnose two lung cancer types, small cell and non-small cell, depending on how they appear under a microscope. A person is more likely to have non-small cell lung cancer than small cell.

While anyone can develop lung cancer, cigarette smoking and exposure to smoke can increase the likelihood that a person will experience the condition. Lung cancer can develop if a person has a history of exposure to inhaled chemicals or other toxins. Even if this exposure to chemicals and other toxins was a long time ago, it could cause changes in lung cells that lead to cancer.

If a doctor identifies a suspicious lesion on an imaging study, they may recommend taking a sample of lung tissue to test for potentially cancerous cells. There are different ways to take a tissue sample, and the method often depends on the location of the lesion. One example is when a doctor performs a bronchoscopy, which involves inserting a special thin, lighted scope with a camera on the end. This helps the doctor to see the lesion and then to obtain samples. Less accessible lesions in the lungs may require a more invasive surgical procedure to remove lung tissue, such as thoracoscopy or video-assisted thoracic surgery.

Question: There are four lung cancer cells

A. True

B. False

it's the 1980s. Cell phone are toys for business people. They cost hundreds of dollars. They are very big, and very basic.

the batteries are only good for a fifteen-minute phone call. Teenagers make phone calls from home !

today, you can buy a cell phone for about $10, and 75% of american teenagers have one . They can talk for ten hours, but they can also

send text photos, take pictures, play music, play game, send e-mails, and more

88% of teenagers send text messages every day, and 25% of teens send more than 50 messages each month! And about 30% send more than 100 texts a day, or about 3,000 a month

send text messages 88%

take picture 83%

play music 60%

record video 54%

play game 46%

go online 27%

use social networking sites 23%

e-mail 21% 

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42

Since the dawn of time, people have found ways to communicate with one another. Smoke signals and tribal drums were some of the earliest forms of communication. Letters, carried by birds or by humans on foot or on horseback, made it possible for people to communicate larger amounts of information between two places. The telegram and telephone set the stage for more modern means of communication. With the invention of the cellular phone, communication itself has become mobile.

For you, a cell phone is probably just a device that you and your friends use to keep in touch with family and friends, take pictures, play games, or send text message. The definition of a cell phone is more specific: it is a hand- held wireless communication device that sends and receives signals by way of small special areas called cells.

Walkie - talkies, telephones and cell phones are duplex communication devices: They make it possible for two people to talk to each other. Cell phones and walkie- talkies are different from regular phones because they can be used in many different locations. A walkie- talkie is sometimes called a half- duplex communication device because only one person can talk at a time. A cell phone is a full- duplex device because it uses both frequencies at the same time. A walkie-talkie has only one channel. A cell phone has more than a thousand channels. A walkie- talkie can transmit and receive signals across a distance of about a mile. A cell phone can transmit and receive signals over hundreds of miles. In 1973, an electronic company called Motorola hired Martin Cooper to work on wireless communication. Motorola and Bell Laboratories (now AT& T) were in a race to invent the first portable communication device. Martin Cooper won the race and became the inventor of the cell phone. On April 3, 1973, Cooper made the first cell phone call to his opponent at AT& T while walking down the streets of New York city. People on the sidewalks gazed at cooper in amazement. Cooper's phone was called A Motorola Dyna- Tac. It weighed a whopping 2.5 pounds (as compared to today's cell phones that weigh as little as 3 or 4 ounces)

After the invention of his cell phone, Cooper began thinking of ways to make the cell phone available to the general public. After a decade, Motorola introduced the first cell phone for commercial use. The early cell phone and its service were both expensive. The cell phone itself cost about $ 3, 500. In 1977, AT & T constructed a cell phone system and tried it out in Chicago with over 2, 000 customers. In 1981, a second cellular phone system was started in the Washington,D.C and Baltimore area. It took nearly 37 years for cell phones to become available for general public use. Today, there are more than sixty million cell phone customers with cell phones producing over thirty billion dollars per years

The word “ they” in paragraph 2 refer to________

A. Walkie – talkies

B. Walkie - talkies, telephones

C. telephones and cell phones

D. Walkie - talkies, telephones and cell phones

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42

Since the dawn of time, people have found ways to communicate with one another. Smoke signals and tribal drums were some of the earliest forms of communication. Letters, carried by birds or by humans on foot or on horseback, made it possible for people to communicate larger amounts of information between two places. The telegram and telephone set the stage for more modern means of communication. With the invention of the cellular phone, communication itself has become mobile.

For you, a cell phone is probably just a device that you and your friends use to keep in touch with family and friends, take pictures, play games, or send text message. The definition of a cell phone is more specific: it is a hand- held wireless communication device that sends and receives signals by way of small special areas called cells.

Walkie - talkies, telephones and cell phones are duplex communication devices: They make it possible for two people to talk to each other. Cell phones and walkie- talkies are different from regular phones because they can be used in many different locations. A walkie- talkie is sometimes called a half- duplex communication device because only one person can talk at a time. A cell phone is a full- duplex device because it uses both frequencies at the same time. A walkie-talkie has only one channel. A cell phone has more than a thousand channels. A walkie- talkie can transmit and receive signals across a distance of about a mile. A cell phone can transmit and receive signals over hundreds of miles. In 1973, an electronic company called Motorola hired Martin Cooper to work on wireless communication. Motorola and Bell Laboratories (now AT& T) were in a race to invent the first portable communication device. Martin Cooper won the race and became the inventor of the cell phone. On April 3, 1973, Cooper made the first cell phone call to his opponent at AT& T while walking down the streets of New York city. People on the sidewalks gazed at cooper in amazement. Cooper's phone was called A Motorola Dyna- Tac. It weighed a whopping 2.5 pounds (as compared to today's cell phones that weigh as little as 3 or 4 ounces)

After the invention of his cell phone, Cooper began thinking of ways to make the cell phone available to the general public. After a decade, Motorola introduced the first cell phone for commercial use. The early cell phone and its service were both expensive. The cell phone itself cost about $ 3, 500. In 1977, AT & T constructed a cell phone system and tried it out in Chicago with over 2, 000 customers. In 1981, a second cellular phone system was started in the Washington,D.C and Baltimore area. It took nearly 37 years for cell phones to become available for general public use. Today, there are more than sixty million cell phone customers with cell phones producing over thirty billion dollars per years

What definition is true of a cell phone?

A. The first product of two famous corporation.

B. A hand-held wireless communication device

C. Something we use just for playing games.

D. A version of walkie- talkie