user-avatar
vutruongson522
2 năm trước
Có ba quả cầu lọt vừa khít vào vòng tròn thứ nhất. Bỏ ba quả cầu vào bếp lò rồi lấy ra thì không có quả cầu nào lọt qua vòng trên. Lấy một vòng khác thì thấy quả cầu 1 lọt qua dễ dàng, quả cầu 2 lọt qua vừa khít, quả cầu 3 vẫn không lọt qua. Hãy cho biết quả cầu nào bằng đồng, quả nào bằng sắt, quả nào bằng nhôm ?
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

I/ Change these active sentences to passive 1) The Government is planning a new road near my house. à A new road ​ 2) My grandfather built this house in 1943. à This house ​ 3) Picasso was painting Guernica at that time. à Guernica ​ 4) The cleaner has cleaned the office. à The office​ 5) He had written three books before 1867. à Three books​ 6) John will tell you later. à You ​ 7) Somebody should do the work. à The work ​ 8) Do people speak Portuguese in Brazil? à ……… Portuguese ​ 9) They are going to build a new stadium near the station. à A new stadium​ 10) Nobody loves me! à I ​ II/ Choose the right form of the verbs in brackets 1/ The children (reported/ were reported) to be homeless. à ​ 2/ Trees (grow/ are grown) well in this soil. à ​ 3/ Can English (speak/ be spoken) at the club? à ​ 4/ I (don’t invite/ am not invited) to parties very often. à ​ 5/ Many new roads (are building/ are being built) in this city. à ​ 6/ When they (came/ were come), the meeting (had started/ had been started). They were 10 minutes late. à ​ 7/ He (is standing/ is being standed) in front of a large audience. He (is photographing/ is being photographed) by many journalists now. à ​ 8/ (Have the students told/ Have the students been told) about the changes of their timetable yet? à ​ 9/ At that time the table (was laying/ was being laid) and I (decided/ was decided) not to come in. à ​ 10/ Where (will these young cocnut trees plant/ will these young cocnut trees be planted)? Giúp mình vs nhé mn

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