Hợp chất hữu cơ chỉ gồm liên kết đơn là: A. C 2 H 4 B. C 2 H 6 C. CH 3 D. C 2 H 2

Cho hàm số : y= mx + m-3. Tìm m để: a) Đồ thị hàm số đi qua A(3, -5) b) Đồ thị hàm số cắt trục tung tại điểm có tung độ bằng 4

Vẽ cho mk xin Anime girl ngầu nha Mơn nhiều 🖤

Em học được gì ở nhân vật cô Hiền

Tìm và phân tích cấu tạo của các cụm danh từ trong đoạn trích sau Trong các bụi rậm xa ,gần, những chú chồn, những con dúi với bộ lông ướt mềm, vừa mừng rỡ, vừa lo lắng nối tiếp nhau nhảy ra rồi biến mất. Trên các hòn van lá dày những con chim K Lang mạnh mẽ, dữ tợn, bắt đầu dang những đôi cánh lớn, giũ nước phành phạch .Cất lên những tiếng kêu cô, sắc, chúng nhún bay lên, làm cho những tán lá úa rơi rụng la tả. Xa xa, những chỏm núi màu tím biếc, cắt chéo nền trời. Một dãi Mây mỏng ,mềm mại như một dải lua trắng, dài vô tận ôm ấp, cuốn ngang các chỏm núi như quyến luyến, bịn rịn

giúp mình chọn câu trả lời đúng, toán 7, trắc nghiệm 1 câu

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. Inventions That Changed Our World People have been inventing things for years. Paper was invented about 2,000 years ago. The wheel was invented more than 5,000 years ago. What would life be like without paper to write on or bikes to ride? Those inventions have made life easier. Airplane The Wright Brothers invented the first airplane in December 1903. That makes 2003 the 100th anniversary ! Before the airplane was invented, most people traveled by cars, boats, and trains. Today, airplanes help people travel faster. How do airplanes help you? Telephone Alexander Graham Bell invented the telephone in 1876. Before the telephone was invented, people kept in touch by writing letters or talking in person. Today the telephone makes it easier for people to talk to one another. How do telephones help you? Automobile The first four-wheeled gas-powered car was invented by Karl Benz in 1891. Before people had cars, they couldn’t travel easily. They walked or rode horses for short trips. They took trains or boats for long trips. Today cars are one of the main ways people travel. How do cars help you? Computer People worked for years to make the first computer. It was built in 1946. The first computer was called ENIAC. Today computers are an important part of many people’s lives. People use computers as tools to write, get information, and much more. How do computers help you? Question 21. The primary purpose of this passage is to describe ________. A: some inventions that have made a big difference. B: the invention of the airplane in December 1903. C: some ways that computers help to make our lives easier. D: the reasons why Karl Benz invented the gas-powered car. 19 Choose the underlined part A, B, C or D that needs correcting. Picture 3 A: A B: B C: C D: D 20 Mark the letter A, B, C or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges. Question 13. Chau: Many people think that the real inventor of the telephone was Antonio Meucci, a poor Italian American. Duong: _____. A: Really? How could he do that? B: Really? He couldn’t do that. C: Really? I don’t think. D: Really? Poor him! 21 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. Inventions That Changed Our World People have been inventing things for years. Paper was invented about 2,000 years ago. The wheel was invented more than 5,000 years ago. What would life be like without paper to write on or bikes to ride? Those inventions have made life easier. Airplane The Wright Brothers invented the first airplane in December 1903. That makes 2003 the 100th anniversary ! Before the airplane was invented, most people traveled by cars, boats, and trains. Today, airplanes help people travel faster. How do airplanes help you? Telephone Alexander Graham Bell invented the telephone in 1876. Before the telephone was invented, people kept in touch by writing letters or talking in person. Today the telephone makes it easier for people to talk to one another. How do telephones help you? Automobile The first four-wheeled gas-powered car was invented by Karl Benz in 1891. Before people had cars, they couldn’t travel easily. They walked or rode horses for short trips. They took trains or boats for long trips. Today cars are one of the main ways people travel. How do cars help you? Computer People worked for years to make the first computer. It was built in 1946. The first computer was called ENIAC. Today computers are an important part of many people’s lives. People use computers as tools to write, get information, and much more. How do computers help you? Question 19. It can be inferred from the passage that ________. A: Alexander Graham Bell wrote many letters in his lifetime. B: the Wright Brothers spent a long time trying to invent the airplane. C: Karl Benz didn’t like to walk or ride horses for short trips. D: someone had the idea to invent the computer in the 1940s or early 1950s.

Giúp mình với nhé thanks you😍 😍 😍 😍 😍

Giúp mik đi lm ơn !! Mik sắp nộp r vào 10h30 , mik sẽ vote 5 sao 😭😭

Giúp mình câu 12. Minh cảm ơn . Vote 5sao