Cho tấm tôn hình chữ nhật quay quanh trục là đường thẳng chứa một cạnh của tấm tôn một góc 360° ta được một vật tròn xoay nào dưới đây?

A. Mặt trụ.

B. Hình trụ.

C. Khối trụ.

D. Khối lăng trụ.

Người ta căn cứ vào đâu để phân loại đất?

A. Nguồn gốc hình thành

B. Độ phì nhiêu của đất

C. Cả A và B đều đúng

D. Đáp án khác

Viết đoạn văn giới thiệu bản thân mình bằng tiếng anh:

My name is Minh and I’m a Vietnamese. I am twenty-four years old. I live in Ha Nam province in the south of Vietnam.

I have a big family with six people. I have two sisters and a brother. My sisters are older and my brother is younger than me. My father is a teacher at a secondary school. He has worked for 35 years in the field and he is my biggest role model in life. My mother is a housewife. She is nice and she is really good at cooking. I love my family so much.
I’m a generous and easy-going person but when it comes to work I’m a competitive perfectionist. I’m also an optimistic and outgoing person so I have many friends and other social relationships. I enjoy reading, writing and doing math. I decided to become a Civil Engineer because I have always been fascinated by bridges, buildings, and skyscrapers. A degree in Civil Engineering enables me to achieve my goals and also gives me an opportunity to make a difference in the community.

Five years from now, I want to become a project manager of a construction project. As a project manager, my primary goals are managing people, set budgets, and making decisions of all kinds. I also want to speak English fluently so I can work with people from different countries.

Học tốt nhé!!

Viết một đoạn văn nói về ước mơ của em trong tương lai:

When I was young, I had a dream. It was to become a Fashion Designer. I always wanted to be a Fashion Designer because fashion can make people feel confident or powerful. Or they can be comforting. Clothing can be an artistic expression ­ a projection of the image people want the world to see. But that’s not my dream job anymore. I want to be doctor. Doctor is my dream job because I can help people and being doctor sounds nice.
If you want to be a doctor you have to work very hard. First you have to pass high school with all courses of maths, physics and chemistry. That’s only problem for me. I’m not very talented at school but I'm trying best. After high school you have to study hard 5­6 years in university school before you ca become a doctor. When you are doctor you get good pay but you have long working hours. I’m not really sure can I ever be a doctor but I hope my dream comes true. If don’t maybe i want to start new company.

Chúc bạn hc giỏi!!!

Hiệu của 2 số tự nhiên là:

    11.2+1=23
Số bé là
    (2015-23):2=546
Số lớn là:

      2015-546=1469
Tick cho mình nha!!!!!!!!!!!!!!!

A. rau bợ, rau diếp biển, rau câu, cây đuôi chồn

B. bèo hoa dâu, rau bợ, rau câu, cây thông đất

C. rau bợ, lông cu li,bèo tổ ong, cây tổ chim

D. rong mơ, rau câu, bèo hoa dâu, cây bòng bong