1. Một người dự định đi từ A đến B cách nhau 120 km bằng xe máy với vân tốc không đổi để dến B vào thời điểm định trước. Sau khi đi được 1 giờ người đó nghỉ 10 phút, do đó để đến đúng thời điểm đã định người đó phải tăng thên 6km/giờ so với vận tốc ban đầu trên quãng đường còn lại. Tính vận tốc ban đầu của người đó
2. Tim gia tri nho nhat cua bieu thuc: A= \(\frac{2018}{2+\sqrt{2x-x^2+7}}\)
Giup minh giai bài này
Five phrases have been moved from the passage. Chose a phrase (A-F) to complete each gap (1,0 m)
The main advantage of school uniforms is that they (1)................. Even when the students ae on the way home, everyone knows which school they go to. This is important if the students misbehave, for example. Another advantage is that if all the students in a school (2)…….., then they tend to look smart when they are all together. Finally, students whose parents can’t afford nice clothes (3)………, so they don’t feel inferior.
Most students don’t agree with school uniforms, therefore, for a number of reasons. Firstly, when you have to wear the same clothes as everyone else, you don’t (4)……….. Moreover, people who look scruffy are usually too scruffy in their uniforms too, and you can always tell the people who come from poor families because their uniforms are not as new as others’ iniforms. Lastly, the main reason why almost all students don’t like school uniforms is that most schools (5) …….. that they don’t suit young people at all.
A. choose such horrible colors and styles
B. look the same as everyone else
C. stay healthy enough to remain independent
D. wear the same type of clothes in matching colors and styles
E. give a common identity to the school
F. have a chance to develop personal taste in the way you dress
35 phut dung ko