Thêm các dấu của phép tính và dấu ngoặc (nếu cần) vào các số sau để tạo một biểu thức có giá trị bằng 100. a) 111111 b) 322223 c) 444555

Mn giúp em với ạ. EM đang cần gấp ạ

Giải hộ với ạ mình đang cần gấp

Viết đoạn kết khác cho chuyện" Chuyện chức phán sự đền tản viên"

I/never/forget/happen/last friday

Giúp mình câu 4-5-6 với mình đang cần gấp

Giúp mk với có 1 câu à, ngắn cực lun ý

Cho ∆ABC có góc A > 90°. lấy D∈AB, E∈ AC CMR:DE<BC

The Earth Day comes from the idea of a former US politician Gaylord Nelson. He was worried about the world pollution, and the health of plants and animals. In 1969, he decided that the world should have a special day to teach people about how to make environment better. His idea became popular and on 22 April 1970 the first Earth Day was celebrated. Since then, environmentalists have used the day to educate people about their roles in protecting our planet. Earth Day finally became a global celebration around the world. On this day, people come together to talk about global warming, protecting rare animals and saving energy sources. Question 21: The best title for the passage can be ______. A: The meaning of the Earth Day B: Gaylord Nelson, the politician C: Preserving our energy sources D: The celebration of Earth Day

22. The World Wide Web is made up of millions of ____ created by anybody from multi-media corporations to ordinary people like you and me. A. newsgroups B. chatrooms C. users D. sites 23. On the web you can read ____ newspapers or magazines; you can watch videos, download music or buy anything. A. virtual B. online C. digital D. offline 24. When I first started learning English ten years ago, I could hardly ____ a word - "hello”, “goodbye”, “thank you” was just about it! A. speak B. talk C. say D. tell