Bộ phận còn thiếu trong sơ đồ hệ thống cơ khí động lực hình bên dưới là

Con hãy lựa chọn đáp án Đúng hoặc Sai

“Phương pháp kí hiệu đường chuyển động biểu hiện các đối tượng địa lí đứng yên trong không gian như các loại gió, dòng biển, các luồng di dân, ...”

Đúng

Sai

Tướng Pháp chỉ huy cuộc tấn công ra Bắc Kì lần thứ nhất (1873) là

Sắp xếp các nội dung sau theo đúng quy trình thu thập, xử lí thông tin và sử liệu.

1 - Lập thư mục và danh mục các nguồn sử liệu cần thu thập

2 - Chọn lọc, phân loại sử liệu để thuận lợi cho việc xác minh, đánh giá

3 - Sưu tầm, đọc và ghi chép thông tin sử liệu liên quan đến vấn đề nghiên cứu

4 - Xác minh, đánh giá về nguồn gốc sử liệu, thời điểm ra đời, nội dung sử liệu phản ánh.

Read the following passage about news 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 31 to 40.

[I] Wildlife conservation refers to the efforts made to protect and preserve wild animal species and their habitats. [II] It is crucial for maintaining biodiversity, which plays a vital role in ecosystem stability and health (Smith & Jones, 2018). [III] Unfortunately, many species are threatened due to habitat destruction, poaching, and climate change, making conservation efforts more urgent than ever. [IV]

One of the primary reasons for wildlife conservation is the preservation of biodiversity. A diverse range of species contributes to ecosystem services, such as pollination, water purification, and climate regulation. The loss of a single species can disrupt these services and lead to ecological imbalances. For instance, the decline of pollinators like bees has serious implications for food production and agriculture (Global Biodiversity Outlook, 2020).

Moreover, wildlife conservation has significant economic benefits. Many communities depend on ecotourism, which relies on healthy wildlife populations and intact ecosystems. According to a study by the World Wildlife Fund (WWF), ecotourism can generate billions of dollars in revenue, providing jobs and supporting local economies (WWF, 2021). Protecting wildlife not only safeguards natural resources but also creates sustainable livelihoods for local populations.

However, effective wildlife conservation requires a collaborative approach. Governments, non-governmental organizations, and local communities must work together to implement policies and strategies that promote conservation efforts. Community-based conservation initiatives, where local people actively participate in protecting their natural resources, have shown promising results. These initiatives empower communities and ensure that conservation efforts are tailored to local needs and contexts (Bennett & Dearden, 2014).

Which of the following best paraphrases the underlined sentence in paragraph 4?

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. Is 6:00 PM OK?

b. OK, I like that place.

c. The Italian restaurant on 5th street.

d. Yes, that’s good. Where would you like to go?

e. Jennifer, would you like to have dinner with me?

f. I think that’s too late.

g. How about tomorrow night? Is 9:00 PM all right?

h. Yes. That would be nice. When do you want to go?

Choose the best answer to fill in the blank.

A lot of people like to play their records as loudly as possible. The (1) ____ is that the rest of the family and the neighbors often complain (2) ____ don't like the music. One (3) ____ to this problem is to wear headphones, but headphones are usually uncomfortable.

An arm-chair which has a record-player built into it has just been (4) ____ by a British engineer, Stephen Court.

The armchair looks like an ordinary armchair with high back. However, each of the two sides of the chair has three loudspeakers inside to reproduce middle and high sounds. Low sounds are reproduced by a pair of loudspeakers in a hollow (5) ____ under the seat. Anyone who sits in the chair hears sounds coming from all around his/her head.

Because we cannot tell the exact (6) ____ from which low sounds come, it doesn't (7) ____ that they come from underneath or behind. It is the higher sounds coming from the sides of the chair that create a stereo effect.

These sounds travel only a few inches to reach the listener's ears. (8) ____, it takes only a little power to make the music sound very loud. Only a small amount of sound leaks out from behind the chair into the room to (9) ____ others. Most of the sound is (10) ____ by the listeners.

Choose the best answer for question 4:

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 following questions from 23 to 30.

The 22nd Southeast Asian Games were held in Vietnam from December 5th to 13th, 2003. It marked the first time Vietnam hosted such a significant sporting event, yet the Games were a great success. They became a grand festival that impressed sports enthusiasts with their spirit of solidarity, cooperation for peace, and development. The event demonstrated Vietnam's capability to unite the region through sports.

Athletes from 11 participating countries competed in 32 sports, winning a total of 444 gold medals. Teams in table tennis, badminton, karate, volleyball, basketball, and wrestling showcased some of the region’s top competitors. Notably, many records set during the Games were close to international standards. Vietnam emerged victorious, securing 158 gold medals and finishing at the top of the medal standings. Thailand came second with 90 golds, while Indonesia ranked third with 55. Singapore and Vietnam were the only nations with participants honored as the Most Outstanding Athletes in Swimming and Shooting events.

In football, the Vietnamese Women's Football team successfully defended their SEA Games title, a moment of pride for the host nation. In the Men's Football Final, Vietnam faced Thailand but lost, with the Thai team taking home the gold medal. Other sports, such as karate, athletics, bodybuilding, and wushu, saw young and talented Vietnamese athletes delivering exceptional performances and securing numerous gold medals. The strong performance of the athletes reflected Vietnam's growing prowess in the regional sports arena.

Vietnam’s first-place finish was not surprising. To prepare for the 22nd SEA Games, the country implemented an intensive training program for its athletes, involving both domestic and international facilities. Furthermore, the enthusiastic support from the Vietnamese people inspired the athletes to compete in high spirits. This success solidified Vietnam’s reputation as an excellent host for international sporting events. With this achievement, Vietnam has demonstrated its potential to host even larger competitions, such as the Asian Games, in the future.

The word “showcased” in paragraph 2 could be best replaced by:

Trật tự thế giới hai cực I-an-ta có biểu hiện nào sau đây?

Vật nuôi chuyên dụng là gì ?

Đâu là mệnh đề chứa biến trong các câu dưới đây?

Read the following passage about urban shift and mark the letter A, B, C, D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.

[I] Sperm whales are fascinating creatures. [II] They possess the biggest brain of any species, six times larger than a human’s, which scientists believe may have evolved to support intelligent, rational behavior. [III] They’re also highly social and capable of making decisions as a group. [IV] But there’s also a lot we don’t know about them, including what they may be saying to one another when communicating with a system of short clicks, known as codas.

Now, new research published in Nature Communications today suggests that sperm whales’ communication is actually much more expressive and complicated than was previously thought. A team of researchers led by Pratyusha Sharma at MIT’s Computer Science and Artificial Intelligence Lab (CSAIL) working with Project CETI, a nonprofit focused on using AI to understand whales, used statistical models to analyze whale codas and managed to identify a structure to their language that’s similar to features of human language. Their findings represent a tool future researchers could use to decipher not just the structure but the actual meaning of whale sounds.

For the study, the researchers examined recordings of 8,719 codas from around 60 whales collected by the Dominica Sperm Whale Project between 2005 and 2018, using a mix of AI algorithms for pattern recognition and classification. The AI then turned the clicks within the coda data into a new kind of data visualization called an exchange plot, revealing that some codas featured extra clicks. These extra clicks, combined with variations in the duration of their calls, appeared in interactions between multiple whales, which they say suggests that codas can carry more information and possess a more complicated internal structure than we had previously believed.

The team’s next step is to build language models of whale calls and to examine how those calls relate to different behaviors. They also plan to work on a more universal system that could be used across species, says Sharma. Taking a communication system we know nothing about, working out how it encodes and transmits information, and slowly beginning to understand what’s being communicated could have many purposes beyond whales. “I think we’re just starting to understand some of these things,” she says. “We’re very much at the beginning, but we are slowly making our way through.”

According to paragraph 2, which of the following is NOT mentioned as a tool or method used by researchers to study whale communication?

Tập nghiệm của bất phương trình \({{x}^{2}}-25<0\) là

Ngân sách nhà nước hình thành và phát triển gắn liền với sự xuất hiện và phát triển của đối tượng nào?

Một tàu ngầm dùng để nghiên cứu biển đang lặn ở độ sâu 200 m. Người ta mở một bình dung tích 60 lít chứa khí ở áp suất 10⁷ Pa và nhiệt độ 27 °C để đẩy nước ra khỏi thùng chứa nước ở giữa hai lớp vỏ của tàu làm cho tàu nổi lên. Sau khi dãn nở, nhiệt độ của khí là 8 °C. Tính thể tích nước bị đẩy ra khỏi tàu ra m³. Coi khối lượng riêng của nước biển là 1000 kg/m³; gia tốc trọng trường là 9,81 m/s², áp suất khí quyển là 1,013.10⁵ Pa. (Đáp án được làm tròn đến 2 chữ số sau dấu phẩy).

Khai triển đa thức \(P(x)=(1+2 x)^{12}=a_{0}+a_{1} x+\ldots+a_{12} x^{12}\). Tìm hệ số \(a_{k}(0 \leq k \leq 12)\) lớn nhất trong khai triển trên.

Hình vẽ nào sau đây có phần không bị gạch minh họa cho tập hợp \(\left( 1;4 \right]\)?