user-avatar
neymarxuantruong18
2 năm trước
Một đoàn tàu đi từ A-B với vận tốc 45km/h .Lúc về đoàn tàu đi với vận tốc 30km/h .Nên thời gian về nhiều hơn thời gian đi là 12 phút .Tính quãng đường AB
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

1. You shouldn’t let your children_______ (play) with matches. It’s very easy_______ (catch) fire. 2. I enjoy______ (be) busy. I don’t like it when there is nothing_____ (do) 3. Let’s hurry! We must finish_______ (paint) the office before 3:00 today. 4. As we don’t agree _______ (carry out) a proposal we generally avoid _______ (discuss) the subject. 5. I don’t mind_______ (remind) you _______ (lock) the door but you’d better _______ (try) _______ (remember) on your own. 6. Please stop_______ (interrupt) when I’m explaining something to you. You can_______ (ask) questions at the end. 7. He admitted_______ (enter) the house but refused (steal) the money. 8. I don’t really fancy_______ (spend) my whole holiday with your cousins. I’d rather _______ (spend) my time with you. 9. We had hoped_______ (finish) the project by the end of the month but we keep_______ (delay) by changes in the plans. 10. You’d better_______ (go) and see the boss and say what you've done. If you put off_______ (explain) it to her, she’ll only more annoyed. 11. No that’s not what I meant______ (say). How can I make you _______ (understand)? 12. Those shirts need_______ (iron),but you don’t need _______ (iron) them now. 13. Are we permitted_______ (bring) guests to the ceremony? I’d like _______ (invite) my friend to join us. 14. Children shouldn't be allowed_______ (catch) violent programs on TV. Parents should encourage their children_______ (watch) educational programs. 15. It’s no use _______ (try) ______ (persuade) her _______ (change) her mind. Spend your time _______ (do) something more worthwhile. giúp em giải thích nữa ạ

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