Trong các bức xạ điện từ có bước sóng \(\lambda \): \({\lambda _1} = 0,5m\); \({\lambda _2} = 0,72\mu m\); \({\lambda _3} = 0,2\mu m\); \({\lambda _4} = {10^{ - 9}}m\), bức xạ dùng trong thông tin với các vệ tinh là

Cho các phát biểu sau đây về kì trung gian:

1) Có 3 pha: G1, S và G2.

2) Ở pha G1, tế bào tổng hợp các chất cần cho sự sinh trưởng

3) Ở pha G2, ADN nhân đôi dẫn tới sự phân đôi NST đơn thành NST kép.

4) Ở pha S, tế bào tổng hợp những gì còn lại cần cho phân bào.

Số phát biểu đúng là:

The boy likes ________ games but hates ___________ his lessons.

H đặt ra kế hoạch cần phải có một khoản tiền 300.000 đồng nhằm thực hiện chuyến đi chơi cuối tuần cùng các bạn trong lớp nên H dự định sẽ nghỉ học hai buổi để phụ giúp việc bán hàng cho bác M đầu ngõ lấy tiền công. Bạn H đã thực hiện sai ở bước nào trong lập kế hoạch tài chính cá nhân?

Rewrite the following sentences without changing their meaning, using the given words. Write full sentence.

My sister enjoys coke more than lemonade.

My sister prefers _______________ .

Tác giả Trần Quốc Vượng là một:

Cho một cấp số nhân có các số hạng đều không âm thỏa mãn \({u_2} = 6,{u_4} = 24\). Tổng của 10 số hạng đầu tiên của cấp số nhân đó là?

Chọn ý đúng: Nguồn lực công nghệ là gì?

Read the following passage about addressing challenges and mark the letter A, B, C, or D to indicate the option that best fits each of the numbered blanks from 18 to 22.

Social issues are problems that affect a large number of people in society, often creating inequality and hardship. One of the most significant social issues today is poverty. (18) ______, such as food, shelter, and education. In many parts of the world, (19) ______, with families trapped in a cycle of deprivation. While poverty is a complex issue, it is often connected to factors like unemployment and lack of access to education. These factors make it hard for individuals to escape the cycle and improve their lives. To address poverty, governments and organizations must create sustainable policies that focus on education, healthcare, and employment opportunities.

Another pressing issue is gender inequality. In many countries, women still face discrimination in areas like employment and education, limiting their opportunities for personal and economic growth. Even in developed nations, women earn less than men for doing the same work. (20) ______, as people demand equal rights and opportunities for all genders. Moreover, gender inequality can also affect women’s health and safety, (21) ______.

Finally, environmental degradation, like pollution and climate change, is a growing global concern. Environmental damage, (22) ______, especially in poorer regions, often affects them the most. The increasing frequency of natural disasters, caused by climate change, is also putting immense pressure on vulnerable populations. Tackling these issues requires a collective effort from both individuals and governments. Only through cooperation and sustainable practices can we hope to create a more equitable and livable world for future generations.

Cho các số tự nhiên $a, \, b, \, c$ thỏa mãn cả hai điều kiện $20\lt a\lt b$ và $24>c>b$. Tìm $c$.

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 6:

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 25 to 30.

How to Manage Your Money Wisely?

Managing your finances properly is essential for a stable and secure life.  (25) _________, many people struggle with budgeting and saving and give up their financial plans sooner or later, eventually leading (26) _________ overspending and financial stress. Here are some tips to well manage your pocket:

• Invest some of your money if possible.

• Have a bank account with an increasing amount of savings (27) _________ month by setting realistic financial goals.

• Buy (28) _________ within your price range.

• Track your spending carefully to avoid (29) _________ expenditure on unnecessary purchases.

•  Prioritise things that bring you lasting happiness and financial security to get your money's (30) _________!

(Adapted from https://www.thebalancemoney.com)

Choose the best answer for number 28: