Trong không gian với hệ toạ độ Oxyz, phương trình nào sau đây là phương trình tham số của đường thẳng?

Đâu là ý đúng khi nói về giá thể than bùn?

Thơ hai-cư trong tiếng Nhật thường gồm mấy dòng?

Read the following passage about the Exploring The Universe 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.

Science is a vast and fascinating field that seeks to understand the natural world and the universe beyond[I]. It encompasses various disciplines, including physics, chemistry, biology, and astronomy[II]. Each of these areas contributes to our understanding of complex phenomena, [III]. For instance, scientific research has led to significant breakthroughs in medicine, renewable energy, and environmental conservation[IV]. In this essay, we will explore the impact of science on our lives, particularly focusing on space exploration.

One of the most intriguing aspects of science is space exploration. Humans have always looked to the stars, wondering what lies beyond our planet. The launch of satellites and manned missions has allowed us to gather valuable information about the cosmos. For example, NASA's Mars Rover has provided insight into the potential for life on other planets. Through meticulous research and data collection, scientists can analyze soil samples and atmospheric conditions, paving the way for future explorations.

Space exploration also raises critical questions about our existence and the future of humanity. As we continue to advance technologically, the prospect of colonizing other planets becomes more plausible. This endeavor could serve as a solution to the challenges we face on Earth, such as overpopulation and resource depletion. However, ethical considerations must guide these efforts. We must ensure that we do not repeat the mistakes of history, such as the exploitation of natural resources and indigenous populations.

Moreover, scientific advancements have enabled us to develop technologies that enhance our understanding of the universe. Telescopes and space probes allow us to observe distant galaxies, study black holes, and uncover the mysteries of dark matter. Each discovery leads to new questions, further fueling our curiosity and drive for knowledge. The concept of the multiverse, for instance, challenges our understanding of reality and pushes the boundaries of scientific thought.

In addition to exploring the universe, science plays a crucial role in addressing pressing issues on Earth. Climate change, for example, is a significant concern that scientists are actively investigating. Through climate models and data analysis, researchers can predict future trends and propose solutions to mitigate the effects of global warming. Public awareness and education are essential in fostering a collective response to environmental challenges.

As we reflect on the wonders of science, it is clear that its contributions extend far beyond mere knowledge acquisition. Science empowers us to make informed decisions about our health, environment, and future. By fostering a culture of curiosity and critical thinking, we can inspire future generations to continue exploring the unknown.

Which of the following is NOT mentioned in the essay?

Một hệ gồm hai vật có khối lượng lần lượt là \({m_1} = 1kg,{m_2} = 2kg\), chuyển động ngược hướng, vận tốc của vật 1 có độ lớn là 2m/s, vận tốc của vật 2 có độ lớn là 1m/s. Tổng động lượng của hệ hai vật là

Cho hình chóp \(S.ABC\) thỏa mãn \(SA=SB=SC\). Tam giác \(ABC\) vuông tại\(A\). Gọi \(H\) là hình chiếu vuông góc của \(S\) lên \(mp\left( ABC \right)\). Chọn khẳng định sai trong các khẳng định sau?

Read the following notice about a new travel platform 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 6

MAKING HONEY

Do you like honey? Honey is a natural product, and it is made by honey bees. It has (1) __________ , which some people prefer to ordinary sugar. Sometimes it’s possible to know (2) __________  the flavour what kind of flowers the bees visited before producing the honey. Have you ever (3) __________  about how honey is produced? Beekeepers – people who look after bees are very important in the making of honey. They let the bees in their care (4) __________more honey than is needed. Then the honey can be removed without causing problems for the bees. Honey collection is an ancient activity, (5) __________ back at least 10.000 years. Thus, honey has become increasingly (6) __________  nowadays as a healthy food, so people of all age can use it not only to treat some simple ailments but also to slow down aging process.

Trong lĩnh vực kĩ thuật điện, hoạt động liên quan đến sử dụng điện năng là

Trong không gian với hệ tọa độ $Oxyz$, cho hình chóp $S.ABCD$ có các đỉnh lần lượt là

$S(0;0;a)$; $A(0; 0; 0)$; $B(2a; 0; 0)$; $D\Big(0; \dfrac{2a\sqrt{3}}{3}; 0 \Big)$ với $a>0$.

Góc giữa hai mặt phẳng $(SBD)$ và $(ABCD)$ bằng

Hoạt động tạo ra sản phẩm vật chất và tinh thần quyết định tạo ra sản phẩm vật chất và tinh thần quyết định sự tồn tại phát triển của con người và xã hội gọi là gì?

Đâu là các khu vực có nhiều năng lượng?

Nội dung nào sau đây không phản ánh đúng vai trò của tri thức lịch sử đối với cuộc sống của con người?