Nội dung nào sau đây phản ánh đúng nguyên nhân thắng lợi của các cuộc kháng chiến chống ngoại xâm ở Việt Nam trước năm 1858?

Tập xác định của hàm số \(y=\frac{1}{x}+\sqrt{3-x}\) là

Một vật dao động điều hoà theo phương trình $x=2\cos\left(4\pi t+\dfrac{\pi}{3}\right)$ cm. Chu kì và tần số dao động của vật là

Vào mùa khai trường, các cơ sở sản xuất đã đầu tư theo công nghệ in ấn mới để có thêm những sản phẩm văn phòng phẩm sinh động, hữu ích phục vụ thị trường sử dụng bút, thước, tập vở học sinh tại địa phương. Trong trường hợp này, các cơ sở sản xuất đã thực hiện chức năng gì của thị trường?

Dấu hiệu nào dưới đây của pháp luật là một trong những đặc điểm để phân biệt pháp luật với đạo đức?

Sử dụng công thức nào sau đây đúng với mạch so sánh đảo khi U_vào > U_ngưỡng?

Với $\overline{\Delta A}$ là sai số ngẫu nhiên và $\Delta A_{dc}$ là sai số dụng cụ, sai số tuyệt đối của phép đo được xác định theo biểu thức

Read the following advertisement and mark the letter A, B, C, and D on your answer sheet to indicate the option that best fits each of the numbered blanks from 1 to 6.

FASHION FOR EVERYONE

"Are you tired of wearing the (1)______? Do you want to express your style in a (2) _____ way? Fashion is not just for the runway; it's for everyone! Our new collection features pieces (3) _____  for comfort and style will fulfill your wish. Each item is made from high-quality materials, which ensure you feel great all day. Whether you're looking for casual wear or something  to make impression (4)_____others at a party, we've got you covered. (5)_____our store and meet our team who can help you find the perfect outfit. Join the fashion revolution and start (6) _____ your unique style today!"

Mark the letter A, B, C, or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17

a. Nam: Oh, don't worry! You'll be fine.

b. Minh: Thanks! I hope I can make a good impression.

c. Minh: I've got an interview for a part-time job tomorrow, and I'm feeling really nervous.

Chủ thể nào dưới đây đang không thực hiện hoạt động tiêu dùng?

Cách mạng tư sản đầu tiên nổ ra ở khu vực

Đường lối Đổi mới đất nước ở Việt Nam có nội dung nào sau đây?

Read the following passage about Unconventional Teachers Who Changed Lives and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 23 to 30.

Traditional education focuses on textbooks, but some teachers go beyond these limitations. Mrs. Rodriguez transformed her classroom into a living laboratory. Her students conducted experiments with plants and simple machines. She believed hands-on learning creates deeper understanding than reading alone. When asked why she taught differently, she replied, "I want students to fall in love with discovery." Her methods helped struggling students improve and develop passion for science.

Mr. Jackson abandoned lectures for storytelling and role-playing. His students experienced history by acting out important moments. This approach made history come alive and helped them remember key information. One student said, "Before Mr. Jackson's class, I thought history was boring, but he showed us it's fascinating." He took classes to historical sites and invited veterans to share experiences. These connections helped students understand how past shapes our present.

In a remote village, Ms. Chen taught English without proper textbooks. She created materials using newspapers and song lyrics. Despite limited resources, her students achieved remarkable results through her dedication. "Learning should be joyful, not painful," she told questioning parents. Ms. Chen organized conversation clubs and pen pal exchanges. These activities gave students practical language skills and confidence to use English in real situations.

Coach Williams was a life mentor who taught valuable lessons through sports. He focused on teamwork and fair play rather than winning. Students who struggled academically often excelled in his class. "The playing field is where children learn who they truly are," he explained. He created inclusive activities for all students regardless of athletic ability. Many former students credit him with teaching life skills like resilience and cooperation that helped them succeed after graduation.

The word “remarkable” in paragraph 3 could be best replaced by _________.

Cho hàm số \(y=\frac{a{{x}^{2}}+bx+c}{dx+e}\) \(\left( a,b,c,d,e\in \mathbb{R} \right)\) có đồ thị như hình vẽ bên. Số điểm cực trị của hàm số này là:

Năm 1848, nhà vật lí người Ireland là William Thomson - Nam tước Kelvin thứ nhất đã đề xuất một thang nhiệt độ mà trong đó mọi nhiệt độ đều có giá trị dương, gọi tên là thang nhiệt độ Kelvin. Trong các phát biểu dưới đây, phát biểu nào là đúng, phát biểu nào là sai khi nói về thang nhiệt độ này?

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the questions from 31 to 35.

With a view to shedding new light on the effects of sleeplessness, Randy Gardner, a student in the United States, came up with an experiment for a school science project, in which he stayed awake for over 264 hours. Meanwhile, Dr. William from Stanford University and Gardner's two friends closely observed him.

After 24 hours without sleep, Gardner started having trouble reading and watching television. By the third day, he was all thumbs. By the fourth day, he was hallucinating. Over the next few days, not only did Gardner's speech become so slurred that people could not understand him, but he was also incapable of remembering things. By the eleventh day, Gardner could not pass a counting test, during which he simply stopped counting. He could not remember what he was doing.

When the experiment was over, Gardner slept for 14 hours on end. By the fourth night, he had returned to his normal sleep schedule. Gardner's rapid recovery notwithstanding, scientists believe that going without sleep can be dangerous. They say people should not repeat Gardner's experiment.

Although a person may spend around 25 years sleeping, the purpose of sleep is still shrouded in mystery. The brain was formerly thought to become inactive during sleep, but it turns out to be very in active. Some scientists think that sleep aids the body growth and relieves stress. Whatever the reason, it is vital to get enough sleep.

(Adapted from Select Reading)

According to paragraph 1, Randy Gardner ______ .

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 1 to 5.

The process of sorting through the various holidays on offer and determining which is the best for you is inevitably complex and individual personality traits will determine the eventual decision. Some people undertake a Other process of extensive problem solving, in which information is sought about a series of products, (1) _________ . Other consumers with no patience to explore a variety of choices (2) _________ , for the sake of their convenience rather than trying to guarantee that they buy the best possible product. This is known as limited problem solving.

Many consumers engage in routinised response behaviour, in which choices change relatively little over time. (3) _________ . Also, some holidaymakers who have been content with a particular company or destination in the past may opt for the same experience again. 

Finally, some consumers will buy on impulse. (4) _________ .  It is, in fact, a pattern of behaviour that is becoming increasingly prevalent -- to the dismay of the operators, who then have less scope for forward planning and reduced opportunities to gain from investing deposits in the short term. (5) _________ , where 'distressed stock' needs to be cleared at short notice and this can be stimulated by late availability offers particularly.

(Adapted from The business of tourism)

Choose the best answer for number 1:

Cho mệnh đề: “Nếu tam giác có hai góc bằng \({60^ \circ }\) thì tam giác đó là tam giác đều”. Mệnh đề đảo của mệnh đề trên là?