Hai ô tô A và B chạy cùng chiều trên cùng 1 đoạn đường với vận tốc 30 km / h và 40 km / h . Vận tốc của ô tô A so với ô tô B bằng bao nhiêu ?

Read the passage and choose the best answers :

The first school for blind , deaf and mute children in the Tibet Autonomous Region celebrated its first anniversary on Friday . The school is built in the eastern suburb of Lhasa , capital of Tibet , and is designed to hold 200 students covers 20 ,000 square meters .

The school curriculum includes Braille and sign language - training , Tibetan , mathematics , writing , ethnics training , physical education , arts , handicrafts , speech and walking courses . At the celebration , the audience was touched by , a silent song expressed by the students with sign language . Baiba Toinzhub , a 10 - year - old blind child , can speak fluently Chinese and is 71 at singing and dancing . He told the visitors that life in the boarding school comfortable .

1. What type of students attended the school ?

A . Children who live in the Tibet Autonomous Region .

B . Children with a variety of disabilities .

C. Children who cannnot see , hear , or speak .

D. Children who are visually impaired .

2. The school is located in .........................................

A . the capital of Tibet

B . the suburb of the capital of Tibet

C. the eastern of Tibet

D . 20 ,000 square meters

3. The school is .............................

A . able to hold 200 students

B . the first boarding school

C . 20,000 square meters in area

D . A and C are correct

4 . Which subject is taught in the school ?

A . Physics

B . Foreign languages

C . Computers

D . Braille

HELP ME !!!!!!!!!!

Read the passage then choose the best answer :

My name is Seumas McSporran and I'm a very busy man . I'm 60 years old and I am a postman , a politician , a fireman , a taxi driver , a school - bus driver , a boatman , an ambulance man , an accountant , a petrol attendant , a barman , and an undertaker . Also , I and my wife , Margaret , have a shop and a small hotel .

I live and work on the island of Gigha in the west of Scotland . Only 20 people live there but in summer 150 tourists come by boat every day .

Every weekday I get up at 6 .00 and makes breakfast for the hotel guests . At 8.00 I drive the island's children to school . At 9.00 I collect the post from the boat and deliver it to all the houses on the island . I also deliver the beer to the island's only pub . Then I help Margaret in the shop .

My wife likes being busy , too . We never have holidays and we don't watch television . In the evenings Margaret makes supper and I do the accounts . At 10.00 we have a glass of wine and then we go to bed . Perhaps our life isn't very exciting , but we like it .

1. Mr . Mcsporran does all the following jobs EXCEPT ...............

A. a mailman B. a driver C . a firefighter D . a farmer

2. Gigha is the name of .........................

A . His wife B . The island where they live C . His hotel D . The shop where they work

3. Tourists ....................................... to the island .

A. sail B . drive C . swim D . fly

4. The word " it " in paragaph 3 refers to ..........................

A. Beer B . Boat C . Post D . Pub

5. According to the passage which is TRUE about Seumas MsSporran ?

A. He goes to bed very late B. He and his wife go on holiday every year

C . He likes the job as a postman most D . He does the accounts in the evening .

HELP ME !!!!!!!!!

Một ca nô đi xuôi dòng từ bến A đến bến B cách nhau 20 km trong thời gian 1h . Nước chảy với vận tốc 1 km / h . Vận tốc của ca nô khi nước đứng yên là bao nhiêu ?

Tập xác định của hàm số y = \(\dfrac{x+2}{x^2+1}\) là bao nhiêu ?

Tập xác định của hàm số y = \(\dfrac{x+2}{x^3-1}\) là bao nhiêu ?

Tìm m để hàm số y = \(\sqrt{x-m+2}+\sqrt{2m-1-x}\) xác định trên ( -1 ; 2 )