user-avatar
khoi07122011
1 năm trước
Bài 5: Cho tam giác ABC nhọn nội tiếp (O), đường cao AD, BE của tam giác cắt nhau tại H. AD cắt đường tròn tại I. C/m: DH= DI giúp tui với, tui nghĩ hoài mà k đc helpp
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

I- Put each verb in bracket into a suitable tenses or forms(5pts) 1- It’s a pity you missed the party. If you (come).........................you (meet) ......................... my friend from Hungary. 2- If we (have) .........................some tools, we (be) .........................able to repair the car, but we haven’t had any with us. 3. Fish and many animals are killed by .......................... in their habitat. (pollute) 4- It’s a beautiful house, and I (buy) .........................it if I (have) .........................the money, but I can’t afford it. 5. In many developing countries, water pollution is usually a leading cause of ......................... (die) II- Rewrite each sentence, beginning as shown(5pts) 1. I’ll call the police if you don’t leave me alone. Unless........................................................................................................................................ 2. It’s a shame we don’t have a TV. I wish......................................................................................................................................... 3. Aquatic life suffers to dies because there is thermal pollution. Because of................................................................................................................................ 4. There are asthma, allergies and other respiratory illnesses when air pollution happens. (leads to) .................................................................................................................................... 5. Make me some coffee, and I’ll give you some sweets. If..........................................................................................................................................…

I. Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage. When visitors join in a (1) of the Mekong Delta, they can visit Cai Rang Floating Market to see the river life. Cai Rang Floating Market is (2) all day but it is busiest from sunrise to about 9 a.m. The main items (3) there are farm products and specialities of neighbouring areas. During the early morning market hours, larger sized boat anchor and create lanes so that (4) boats can move into and out of. The waterway becomes a maze of hundreds of boats packed with mango, bananas, papaya, pineapple, and other goods. Sellers do not have to (5) their goods because their goods can be seen (6) and their cries would not be heard in the vastness of the river and the noise of boat engines. Sellers tie their goods to a tall pole (7) buyers can see from a distance (8) they are selling. Each boat is loaded with plenty of seasonal goods. Activities at the market are also a(n) (9) for tourists to study the cultural (10) of southerners. 1. A.tour B.trip C.voyage D.travel 2. A.to open B.open C.opened D.opening 3. A.sell B.are selling C.selling D.sold 4. A.no B.bigger C.smaller D.the same 5. A.cry B.cry out C.cry outfor D.advertise 6. A.within distance B.in the distance C.in a distance D.by some distance 7. A.therefore B.but C.so that D.although 8. A.how far B.why C.how D.what 9. A.occasion B.event C.reason D.experience 10. A.appearances B.aspects C.guides D.subjects

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