Tính: 45 : 5 - 7

Điền chữ số thích hợp vào ô trống:

phong phú thật

Pháp lệnh do cơ quan nào ban hành?

A. Chính phủ.       

B. Thủ tướng chính phủ

C. Quốc hội.

D. Uỷ ban Thường vụ Quốc hội.

Chính sách quan trọng nhất của Nhà nước góp phần thúc đẩy việc kinh doanh phát triển là:

A. Xúc tiến các hoạt động thương mại

B. Tạo ra môi trường kinh doanh tự do, bình đẳng.

C. Khuyến khích người dân tiêu dùng.

D. Hỗ trợ vốn cho các doanh nghiệp.

Two students were asked about their hobbies and here is what they said.

Lien: Cooking is my favorite hobby. My grandmother taught me how to cook my first dish when I was 8. My family enjoyed it so much so that is when I started this hobby. Some people say cooking is a waste of time but I find this hobby very interesting and meaningful. I really love trying new food and cooking for my family. The feeling of making my family happy with my food is amazing. I often collect recipes from my mother and my grandmother. Sometimes I also get recipes from the internet. Then I write them in a notebook. I hope I will become a good chef and have my own cookery book in the future.

Cuong: I have an unusual hobby: carving eggshells. I started this hobby four years ago after getting a carved egg from my dad when he came back from Japan. It's amazing that something as fragile as an empty eggshell can be made into such a beautiful piece of art. I was so amazed that I learned how to carve them myself from the internet. I find carving eggshells a little difficult but so interesting and useful. The feeling of accomplishment when I finish a piece is absolutely awesome. This hobby also helps me be more patient and careful.

Where does Cuong learn to carve from?

A. from his father

B. from the internet

C. from a Japanes

D. None are correct.

Cho hình chóp S.ABCD, đáy ABCD là hình vuông cạnh 2a, SA  = a 3 và vuông góc với đáy, I là trung điểm của AB. Tính khoảng cách giữa SI và BC.

A. d ( S I ; B C ) = a .

B. d ( S I ; B C ) = a 3 4 .

C. d ( S I ; B C ) = a 3 .

D. d ( S I ; B C ) = a 3 2 .

Choose the best answer to complete each sentence A  _______ makes the body more efficient and enhances the body’s ability to respond to stress.

A. Fitness

B. morning exercise

C. training

D. workout