Quá trình tiến hóa xảy ra ở hai quần thể chim được mô tả như hình dưới đây.

Yếu tố chính thứ hai tác động đến cây trồng được giới thiệu trong bài học là:

Khi cây trưởng thành, lượng nước thoát qua bề mặt lá chiếm

Năng suất lao động xã hội của nước ta còn thấp chủ yếu do nguyên nhân nào sau đây?

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 34 to 40.

       Since the birth of the car in 1886, transport in big cities has changed a lot. And it is no wonder that many experts think that there will be extraordinary changes in the next few decades.

       As technology develops, highways, skylines, subways will be all transformed. Smarter roadways and highways in cities outfitted with loT sensors will process all kinds of data in real time and alert users of the best transport options. Weather, crashes, traffic conditions will be communicated to users and smart stops will be found everywhere providing renewable energy, green hydrogen or even greener energy, ensuring efficiency and safety on every highway. Tunnels will also be a smart choice because of the reduction of traffic congestion. Underground roads will be built in 3D with a lift system which will take vehicles deep underground and will allow traffic to attain the greatest speed without intersections.

       There will also be innovations in the sky. Air taxis are not a new idea, but in the future they will be completely environment-friendly. Aviation gasoline will be no longer used. Green energy will be in place and cost-effective air taxis will enable people to travel from one busy urban city to another in record time.

       New technologies such as Al and the rollout of 5G will pave the way for fully autonomous innovation. Cars will not be the only thing to go autonomous. Freight trucks, cargo vehicles, air taxis will all benefit from this technology and that is why the term ‘driver’ will become extinct.

       Transport will go green. Electric or hydrogen power will be mainstream. There will still be issues to solve such as safety, speed and cost, and of course governments will need to make new traffic laws.

(Adapted from Friends Global)

The word they in paragraph 3 refers to _______.

Một người phụ nữ bình thường có bố bị hói có kiểu gene đồng hợp lấy một người chồng không bị hói. Họ sinh được 2 người con, xác suất để cả hai đứa con lớn lên không bị hói đầu là

Nhiệt độ mặt đất đo được khoảng \({{30}^{\circ }}\)C. Biết rằng cứ lên cao \(1\) km thì nhiệt độ giảm đi \({{5}^{\circ }}\)C. Hàm số \(T\) (độ C) tính theo độ cao \(h\) là

Hoa Kì có cơ cấu dân số như thế nào?

Cánh tay đòn của lực là

Một thông số được dùng là căn cứ xác định giá trị bit của giá trị mẫu là

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

Cho bpt \(5(2x - 3y) - 3(2x - y + 7) > x - 3y\). Điểm nào dưới đây thuộc miền nghiệm của hệ đã cho?

Để khi làm việc với màn hình máy tính đỡ mỏi mắt thì cần gì?

Provide the correct form of the verb in brackets.

A: Where's Tom?

Cho hai biến cố $A, B$ sao cho $P(A)=0,6$; $P(B)=0,4 ;\, P(A |B)=0,3$. Giá trị của $P(\bar B |A)$ là

Choose a suitable word or phrase (marked A, B, C or D) to fill in each blank.

Mrs. Henderson doesn’t go to work today, because her son has a bad cold. She has to stay at home and _________ him.

Read the following passage about the Koromi trend 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]. If you’ve done any traveling at all, you’re likely quite aware that customs and etiquette differ from one culture to another: what may be perfectly innocuous in one place may be hideously offensive in another, and vice-versa. [II]. Granted, even if you haven’t traveled at all, you’re probably aware of the fact that certain types of behavior aren’t exactly acceptable in other countries: belching at the table may be a sign of gratitude in some places, but in most areas of North America and Europe, such a display will earn you a fair bit of ire. [III]. Whether you plan on traveling to any of the places listed below or just doing business with a foreign client, it’s important to educate yourself on the standards of politesse and etiquette beforehand-the last thing you want to do is offend someone with any ignorant, boorish behavior. [IV]. Here’s how to be polite in different countries.

When dealing with Japanese clients, be sure to dress fairly conservatively, and make sure that you bow lower than they do upon meeting them. Accept gifts with both hands and open them later, not in front of the giver, and never blow your nose at the dining table. Avoid asking and answering direct questions: it’s better to imply rather than ask, and to answer with vagueness during conversations.

In Kenya, when greeting someone older or of a higher status than yourself, grip their right wrist with your left hand while shaking it; it’s a sign of respect and deference. Do ask questions about their health, family, business etc. before getting to major topics, as skipping these niceties is seen as impolite. If sharing meals, do not begin eating until the eldest male has been served and starts to eat.

Turning down an alcoholic drink is considered terribly offensive in Russia, so it’s a good idea to fortify yourself with some greasy food before heading out for a meal with Russian or Ukrainian clients. Don’t smile at strangers or they’ll think you’re deranged, and when paying for items, place your money on the counter rather than trying to hand it directly to the cashier.

Which of the following best paraphrases the underlined sentence in the 1st paragraph?