user-avatar
huongnt.thptthuongxuan2
2 năm trước
Khoảng cách giữa 2 bến sông A và B là 30km. Một ca nô đi từ A đến B, nghỉ 40 phút ở B, rồilaij trở về A. Thời gian kể từ lúc đi đến lúc đi đến lúc trở về A là 6 giờ. Tính vận tốc của ca nô khi nước yên lặng , biết vận tốc dòng nước là 3km/h
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

III. Combine each pair of sentences to make one sentence, using the words given in brackets. 1. At the Autumn Festival children carry beautiful lanterns. It’s a memorable childhood experience. (so) ………………………………………………………………………………………….….. 2. During Tet, Vietnamese people buy all kinds of sweets. They make Chung Cakes as well. (and) …………………………………………………………………………………………… 3. The Hung King Temple Festival was a local festival. It has become a public holiday in Viet Nam since 2007. (however) ……………………………………………………………………………………… 4. Lang Lieu couldn’t buy any special food. He was very poor. (because) …………………………………………………………………………………………..….. 5. Peter and Phong are happy to join the procession. It is going to rain. (however/nevertheless) ………………........................................................................................................................ 6. Nick wanted to travel around Viet Nam to take pictures of festivals. He started to save money. (therefore) ………………….................................................................................................................... 7. You can go to the Giong Festival. You can go to the Huong Pagoda Festival. (otherwise) ................................................................................................................................................ 8. At the Ooc om bok we float beautiful paper lanterns on the river. We also hold thrilling dragon boat races. (moreover) ................................................................................................................................................ 9. We missed the bus. We were so late. (because) ................................................................................................................................................ 10. The bus arrived. We were talking. (when) ................................................................................................................................................

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team