Một đơn vị bộ đội tham gia đắp một con đường trong một số ngày quy định.Nếu mỗi ngày họ đắp được 50m đường thì hị hoàn thành sớm hơn quy định 1 ngày.Nếu mỗi ngàu họ chỉ đắp được 35m đường thì họ phải hoàn thành công việc chậm hơn 2 ngày so với quy định.Tính chiều dài đường ấy

22. Who killed President John Kennedy? A. By whom President John Kennedy was killed? B. By whom was President John Kennedy killed? C. By whom was killed President John Kennedy? D. By whom killed President John Kennedy? 23. I don’t have enough money, so I can’t buy this car. A. If I have enough money, I will buy this car. B. If only I had enough money, I would buy this car. C. Unless I had enough money, I would buy this car. D. If I had enough money, I would buy this car. 24. There was more coffee in the refrigerator than now A. There is more coffee in the refrigerator than before. B. There is as much coffee in the refrigerator as before. C. There is less coffee in the refrigerator than before. D. There isn’t less coffee in the refrigerator than before. 25. In spite of not speaking French, Mike decided to settle in Paris. A. Even though Mike didn’t speak French, but he decided to settle in Paris. B. Mike decided to settle in Paris despite he didn’t speak French. C. Mike decided to settle in Paris though the fact that not speaking French. D. Although Mike didn’t speak French; he decided to settle in Paris.

GIÚP EM VỚI Ạ ai nhanh nhất em cho hay nhất ạ

The Tay live mainly in the Northeastern part of Viet Nam. They live in large and crowded villages with hundreds of houses. They live in houses built on stilts. They are mainly farmers and they grow rice on terraced fields. They also raise cattles and poultry. Tay traditional dress is made from homegrown cotton. There is usually not much embroidery or other decorations. Women wear skirts or trousers, with short shirts inside and long one on the outside.They have many festivals and holidays in a year. The Lunar New Year and the mid-July festivals are the most lavishly organized. During festivals, people in many places play con throwing,badminton, tug-of-war, dragon dancing, or chess. The Tay eat mainly sticky rice. On festival occasions, they make many kinds of cakes, such as banh chung (sticky rice square cakes), banh day (sticky rice round cakes) or banh khao (cakes made of white rice flour). 17.Which of the following best describes the main idea of the passage? A. The Tay live in the Northeastern part of Viet Nam. B. The Tay make many kinds of cakes on festival occasions. C. The Tay have many festivals and holidays in a year. D. The life of the Tay in Viet Nam. 18.What do the Tay mainly eat? A. sticky rice C. sticky rice square cakes B. sticky rice round cakes D. cakes made of white rice flour 19.Which of the following is NOT true of the Tay? A. They live on stilt houses. B. They grow rice on terraced fields C. They wear clothes with much embroidery. D. They eat sticky rice. 20.Which is true of the Tay’s life? A. They mainly work in agriculture. C. They have one very important festival a year B. They work in industry. D. They buy cotton to make dress. 21.The word "lavishly" is closest in meaning to ______. A. seriously B. carefully C. luxuriously D. lengthily

Cho tam giác abc lấy D và E trên AB va AC sao cho BD=CE gọi m, n, i, k la trung điểm be, cd, be, bc c/m IK ⊥ MN Nhờ ae làm giúp nha Ai xong sẽ cho 5 sao+ cảm ơn Ai trình bày sạch đẹp sẽ cho hay nhất nha Nếu ko bt làm thì đừng giữ slot nha

một phân tử cacbon dioxit khác phân tử cacbon monoxit ở chỗ nào?

1. Cho đa thức: P(x) = x3+ 2x2 - 3x. Số nào sau đây là nghiệm của đa thức P(x): 0; l; -l; -3.

Living in Vietnam today (1)___ greatly from the lifestyle of 100 years ago. People in the past mainly worked in agriculture (2)_____ today there are significantly less peopleworking in this sector of the economy. These days, by comparison, people are more likely tobe employed in manufacturing and tourism than in the rice fields. Moreover, Vietnam, which was (4)____ agrarian, is transforming into an entirely different country. Whileagriculture is still an important component of the Vietnamese economy, other enterprises are accounting for an increasing amount of economic activity. 14. a. compares b. differs c. becomes d. offers 15. a. however b. therefore c. whereas d. when 16. a. traditionally b. gradually c. occasionally d. presently

Chia động từ be ở thì hiện tại đơn

(5x-1)(1/10y^3-2y^2-2/5y) b,(x+3)(x^2-3x+9)