co ai choi tiktok ko?

kb voi mik ko?

Tìm câu trả lời sai : 

A. tam giác ABC và tam giác AMN đồng dạng với nhau thì góc B bằng góc M 

B. tam giác ABC và tam giác AMN đồng dạng với nhau thì góc C bằng góc N

C. tam giác ABC và tam giác AMN đồng dạng với nhau thì AB/AM=BC/MN

D. tam giác ABC và tam giác AMN đồng dạng với nhau thì góc A bằng góc M 

Vương quốc Chăm – pa ra đời như thế nào? So sánh hoàn cảnh ra đời của vương quốc Chăm – pa với nhà nước Văn Lang – Âu Lạc.

1, cho tam giác ABC cân tại A , gọi MN song song với BC, M thuộc AB, N thuộc AC . chứng minh :

a) tam giác AMN đồng dạng với tam giác ABC 

b) kẻ đường cao BE và CF cắt nhau tại H .chứng minh tam giác ACF và tam giác ABE  đồng dạng 

Một mảnh vườn hình chữ nhật có chiều dài bằng 5 phần 3 chiều rộng. Nếu tăng chiều dài lên 4m thì diện tích tăng thêm 48m vuông. Xung quanh mảnh vườn người ta trồng cọc cứ 2m trồng một cọc, trừ cửa ra vào 6m và hai bên cửa ra vào đều có cọc. Tính số cọc trồng được?

Giúp mình nhé!

hãy mô tả thuật toán của bài toán ''nhập giá trị số a nếu a>0 thì in ra màn hình dòng chữ a là số dương, ngược lại in ra dòng chữ a là số âm'' theo 2 cách

đoạn văn nghị luận làm rõ cái hay cái đẹp của biện pháp nghệ thuật so sánh trong đoạn trích tiếng hát con tàu của chế lan viên

"con gặp lại nhân dận như nai về suối cũ

cỏ đón giêng hai, chim én gặp mùa

như đứa trẻ thơ đói lòng gặp sữa

chiếc nôi ngừng bỗng gặp cánh tay đưa"

tổ tiên loài người là ai

B. READING

 I. Read the following and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 1 to 5.

      In the past, cell phones were big and heavy. In the future, telephones will still be big. The good news is that people will be able to fold them in half to make them smaller. The “foldable phone" is now in development.

         One company has come up with a smartphone and tablet in one. This device can fold down to the size of a regular cellphone to make it “pocket-size.” The foldable phone has a larger screen, keyboard, and high- quality speakers. This makes it easy to use. The flexible display can go from smartphone to tablet just by unfolding it. The interior screen is so big that it can run three different apps at the same time. People can watch a video, talk about it, and browse websites online. There are also two batteries inside the phone - one on each side.

           Many companies have been looking for ways to improve smartphones. The foldable phone is unlike anything else that has come before it. This powerful machine is a smartphone, computer, and camera all in one. There is a current race to get foldable phones on the market. But we’ll have to wait and see how well these new smartphones work. If people like them, maybe one day we will be able to fold and even stretch our phone.

Question 1. Which of the following can be the best title for the passage?

A.   The Evolution of Cell Phones                 B. The Features of Foldable Phones

C.  The Superiority of Large Smartphones           D. The Future of Pocket-Sized Technology

Question 2. According to paragraph 2, why is the foldable phone user-friendly?

A.  It has a larger screen, keyboard, and high-quality speakers.

B.   It can run more than three different apps at the same time.

C.   It is a regular cell phone with two batteries inside.

D.   It can be folded or stretched at any time.

Question 3. The word it in paragraph 2 refers to .

A. video              B. device             C. keyboard        D. screen

Question 4. The word run in paragraph 2 is CLOSEST in meaning to            .

A. operate          B. install              C. download      D. move

Question 5. Which of the following is NOT true according to the passage?

A.  Cell phones used to be big and heavy in the past.

B.   The foldable phone is a combination of a smartphone, computer and camera.

C.  A large number of companies have been searching for ways to upgrade smartphones.

D. The foldable phone is currently on the market.

 II. Read the following passage and decide whether the following statements are true (T) or false (F).

Communication technology is making a big difference in our lives, especially for businesses. It makes things work faster and better, and it helps businesses make more money. The 5G wireless network is going to make things even better. It will let us talk to each other and to machines in almost real-time, even if we're in different places. This is because 5G is super fast, has lots of bandwidth, and is really reliable. This means we can do things like have video meetings with people who are far away and control machines from a distance.

 5G and IoT are also helping us create smart cities all over the world. These cities have lots of devices, like smartphones, cars, and machines, all connected to the network. The amount of information and data being transmitted over the networks will be huge, so we need to ensure that we have good ways of communicating. In the future, there will be three main types of communication: machine to machine, human to machine, and human to human.

 Question 1. Communication technology has had a positive impact on businesses.

A. True                               B. False

Question 2. 5G is slower than previous wireless networks.

A. True                B. False

Question 3. The 5G wireless network allows for real-time communication, even if people are in differentlocations.

A. True                B. False

Question 4. Smart cities rely on 5G and IoT technology to connect devices and transmit information.

A. True                B. False

Question 5. In the future, there will only be two main types of communication: machine to machine and human to machine.

A. True                B. False

C. LANGUAGE FOCUS

I. Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

A. invEnt                    B. tExt                      C. wEbcam                             D. dEstroy

 II. Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

A. Chinese                        B. agree                  C. trainee                            D. guarantee

 III. Choose the letter A, B, C, or D to indicate the correct answer to each of the following questions.

3. How ____ do you buy things on Amazon website?

  - Just once or twice a month.

A. long time                      B. usually                         C. always                              D. often

4. I didn’t like the ending; ____, it was a very good movie.

A. however                       B. and                                C. therefore                            D. so

5. We ____ TV when the flood suddenly came.

A. to watch                       B. watching                        C. watched                         D. were watching

6. My train to Paris ____ at 8 AM next Monday morning.

A. will leave                      B. leaves                           C. would leave                 D. leave

7. Alexander Fleming ____ Penicillin in 1928.

A. discovered                   B. created                        C. succeeded                       D. developed

8.When you look at ____ for too long, your eyes get tired.

A. technology    B. a computer screen                C. 3D contact lenses                D. machine

Mark the letter A, B, C, or D to indicate the option that best completes each of the following exchanges.

Hanh: Do you think there may be water on Mars?

Hoa: _____

A. I doubt it.                               B. That’s a good idea!                  

C. Are you sure about that?            D. In your dream!

Mai: My dad has just bought a new iPhone!

  An: _____

A. It’s such a shame.                      B. Great news!

C. Many happy returns!               D. Good luck!

 D. WRITING

I. Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions.

This souvenir shop in Leicester were founded by my great grandparents 120 years ago.

A. in                     B. were                              C. by                                   D. ago

The storm damaged their house badly, but luckily, our was not affected.

A. damaged                      B. badly              C. but                                 D. our

She asked me on Sunday if last night I had gone out to the cinema with some friends.

A. asked                            B. last night                      C. had gone out               D. some

 II. For each question, complete the second sentence so that it means the same as the first.

James was late twice last month. His boss complained about his punctuality. (THEREFORE)

 -> James was late _______________________________________________

"I am talking to Phong on the phone."

 -> Tom said he ___________________________________________________

 III. Write a letter to your school principal to persuade him/her to put recycling bins in your school. You should use between 80 and 100 words.