Áp suất là gì?Viết công thức tính áp suất, nêu ý nghĩ là đv đo các đại lượng. Nói p=10N/\(m^2\) nghĩa là gì

cho a,b,c khác 0 và a/b+c=b/a+c=c/a+b.tính M=(a/b+1)(b/c+1)(c/a+1)

a)\(3x^2\) -5x+3

b)4x\(^2\)+3x+2

c)2x\(^2\)+3x+4

.I. Choose one word whose underlined part is pronounced differently from the others. (5 pts)

1. A. cool B. blood C. fool D. tool

2. A. champagne B. exchange C. chance D. reach

3. A. swing B. sweet C. sword D. swan

4. A. occupation B. occasion C. shake D. challenger

5. A. with B. thunder C. wealth D. marathon

Your answers: 1. _______ 2. _______ 3. _______ 4. _______ 5. _______

II. Choose one word whose stress pattern is different from the others. (5 pts)

1. A. education B. unhappily C. development D. community

2. A. exciting B. important C. delicious D. beautiful

3. A. calendar B. longevity C. scientist D. constancy

4. A. distribute B. intelligence C. calculate D. consumption

5. A. potential B. convenient C. available D. fertilizer

Your answers: 1. _______ 2. _______ 3. _______ 4. _______ 5. _______

III. Choose the best answer to complete the sentences. (10 pts)

1. - “Have a nice weekend!” - “______.”A. Do you have any plans? B. I’m going to take it easy.C. Thanks. You too! D. Are you going anywhere?

2. Let's go somewhere else. There's ______ noise in this room.A. too many B. too much C. enough D. too

3. The staff ______ at weekends so as not to delay the project any further. A. works B. is working C. are working D. working 4. - “Is it far to the railway station from here?” - “______.”A. Sure, no problem B. By taxi C. None at all D. Yeah, it’s pretty far

5. He is the first student ______ the scholarship this yearA. who win B. to win C. winning D. whose won

6. Tet is a wonderful opportunity for ______ off new clothes.A. showing B. wearing C. carrying D. putting

7. They have just moved into a huge ______.A. house two-storey B. house of two storey C. two-storeys house D. two-storey house

8. ______ in large quantities in the Middle East, oil became known as black gold because of the large profit it brought. A. Discovering B. which was discovered C. Discovered D. That when discovered

9. The farther a star is from us, ______ it seems to us.A. the smaller B. much small C. the smallest D. smaller

10. - "Do you like the novel that I gave you last week?”- “______ the novels that I’ve read, I enjoy this one most.”A. All of B. Of all C. For all D. From all

Your answers: 1. _______ 2. _______ 3. _______ 4. _______ 5. ________ 6. _______ 7. _______ 8. _______ 9. _______ 10. _______

Peeling onions always makes me_______________

A.cries

B.crying

C.to cry

D. cry

Bạn nào biết thì giải thích giùm lun cái

1. He is ____ in making the machines ( SUCCESS )
2. People in the countryside is _____ ( FRIENDLY )
3. My sister speaks English ____ than Iam ( GOOD )
4. What is the correct ____ of this word? ( PRONOUCE )
5. There is room for further _____ in your English ( IMPROVE )
6. She actively ______ in social work ( PARTICIPATION)
7. Last year we had an _____ summer holiday. ( ENJOY )
8. He was ____ of his chievements in the field of politíc ( PRIDE )
9. The _____ of the project made me tense ( IMPORTTANT )
10. It's a very simple question. You can ____ answer it ( EASY )

A geyser is the result of underground water under the combined conditions of high temperatures and increased pressure beneath the surface of the each. Since temperatue rises approximately one degree F for every sixty feet under the earth’s surface, and pressure increases with depth, water that seeps down in crachs and fissures until it reaches very hot rocks in the earth’s interior becomes heated to a temperatue in excess of 290 degrees F. Because of the gressure, it shoots out of the surface in the form of steam and hot water. The result is a geyser.For the most part, geysers are located in three regions of the world : New Zealand, Iceland, and the Yellowstone National Park area of the United States. The most famous geyser in the world is Old Faithful in Yellowstone Park. Old Faithful erupts almost every hour, rising to a height of 125 to 170 feet and expelling more then ten thousand gallons during each eruption1.
1. In order for a geyser to erupt,.................
.A. Hot rocks must rise to the sufface of the earth
B. water must flow underground
C. it must be a warm day
D. the earth must not be rugged or broken
2. Old Faithful is located in.....................
A. New Zeland
B. Iceland
C. the united States
D.England
3. Old Faithful erupts......................
A. every 10 minutes
B. every 60 minutes
C. every 125 minutes
D. every 170 minutes
4. A geyser is...................
A. hot water and steam
B. cracks and fissures
C. hot rocks
D. great pressure
5. As depth increases,......................
.A. pressure increases but temperature does not
B. temperature increases but pressure does not
C. both pressure and temperature increase
D. neither pressure nor temperature increases