Cho hàm số bậc bốn $y=f\left(x\right)$ có đồ thị như hình vẽ. Số điểm cực trị của hàm số $g\left(x\right)=f(x^3-3x^2)$ là?

Nắp máy dùng để lắp:

Cho hình chóp S. ABC có đáy ABC là tam giác vuông tại A, \(SA \bot \left( {ABC} \right)\). Hình chiếu vuông góc của đường thẳng SC lên mặt phẳng (SAB) là đường thẳng?

Đơn vị cơ bản trong hệ SI của gia tốc là

Hệ số của \({x^4}\) trong khai triển biểu thức \({(x + 2)^5}\) là?

Trên vỏ một tụ điện có ghi 20 pF – 200 V. Tụ điện tích trữ được năng lượng tối đa là

Chủ tịch Hồ Chí Minh đã cống hiến trọn đời cho mục tiêu nào sau đây? 

Read the following passage about lifelong learning 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 18 to 22.

In today’s rapidly changing world, lifelong learning has become more important than ever. ___(18)___. To stay relevant and competitive in the job market, individuals must continuously acquire new skills and knowledge.

One of the key benefits of lifelong learning is personal growth. ___(19)___. By exploring new subjects and hobbies, individuals can expand their horizons and discover new passions.

Lifelong learning can also lead to professional advancement. ___(20)___. By staying up-to-date with the latest trends and technologies, individuals can increase their value to employers and advance their careers.

However, lifelong learning can be challenging. ___(21)___. Balancing work, family, and personal commitments can make it difficult to find time for learning.

To make the most of lifelong learning, it is essential to set clear goals and create a personalized learning plan. ___(22)___. By breaking down larger goals into smaller, achievable steps, individuals can stay motivated and make progress.

Ngành tài chính - ngân hàng có vai trò nào sau đây?

Cho phương trình \(x^{2}-2 m|x|+9-m=0\). Tìm \(m\) để phương trình có 3 nghiệm phân biệt?

Khi nói về ưu điểm của phương pháp nuôi cấy mô thực vật, phát biểu nào sau đây sai?

Her father ______ when she was a small girl.

Trong các mệnh đề sau, mệnh đề nào đúng?

Văn học dân gian ở vùng các dân tộc ít người có đóng góp gì quan trọng cho kho tàng văn học nước ta từ thế kỉ XVI đến XVIII?

Read the following leaflet 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 7 to 12.

ANNOUNCEMENT OF CARDIFF BIKE RACE

We are going to take part in the Cardiff Bike Race. Please notice some important details:

• Time: 8 AM ___(7)___ the 22nd of September.

• Team’s Dress Code: You ___(8)___ your normal black T-shirts and shorts because another club uses those colors. Instead, we will wear blue.

• Snack Break: After twenty kilometres, there will be a ___(9)___ spot for snacks with some cake and orange juice.

• Prizes: ___(10)___ latest sport watches.

Let's pedal our way to victory!

While our main aim ___(11)___ people on their bikes, a benefit of the day is the fundraising ___(12)___. This is either direct sponsorship from company logos on the cycling shirts or our cyclists getting sponsored individually per mile.

Read the passage below and choose A, B, C or D.

Millions of people are using cellphones today. In many places, it is actually considered unusual not to use one. In many countries, cellphones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.

The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.

On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.

What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.

As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.

Which of the following best paraphrases this sentence:

“Phones are more than a means of communication - having a mobile phone shows that they are cool and connected.”?

Môn Địa lí được học ở cấp độ nào?

Bộ phận nào của phanh có chức năng tạo mômen ma sát giữa phần quay và phần cố định để phanh bánh xe?

Trong sản xuất và lưu thông hàng hóa, các doanh nghiệp thường có xu hướng thu hẹp quy mô sản xuất trong trường hợp nào sau đây?

Tại sao Lênin lại nhận định: Anh là chủ nghĩa đế quốc thực dân?

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

He can shout even louder, but I won’t take any notice.