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abc=11(a+b+c)
100a+10b+c=11a+11b+11c
89a=b+10c
Từ đó VP chia hết cho 89 nên b=9,c=8
a=1
số cần tìm 198
Chắc chắn 100%
Hok tốt ^^ knha
1a.engineer b.national c.scientist d. figure
2a,intelligent b,interest c.dependent d.computer
1. A.engi'neer B.'national C.'scientist C.'figure
=) A.engineer
2. A.in'telligent B.'interest C.de'pendent D.com'puter
=) B.interest
II. Choose the best answer by circling A, B, C or D: (1,8 pts)
1. Turn the TV off. The show is…………………
A. exciting | B. peaceful | C. tiring | D. boring |
2. What are you doing with all that ingredients, Giang?
- I am trying my best to…………..a kind of traditional food.
A. cook | B. play | C. lend | D. agree |
3.She got ………..nice photos of our classmates
A. a | B. an | C. some | D. any |
4 A cello is .......................... violin
A different from B the same as C as big as D not as tall as
5. I want a ..........................of orange juice .
A bar B slice C carton C piece
6. Be careful when you .............................the oil into the frying pan.
A. pour B serve C beat D fold
7. There ......................yogurt in this carton .
A isn’t any B isn’t some C aren’t any
8.Would you like …………..badminton ?
A. to play B playing C. play D. plays
9.A bowl of noodle ............................10 dollars A. is B; are c. have D. has
II. LANGUAGE FOCUS.
1. Find the word which has different sound in the part underlined. (0,4 pts)
|
1. A. mention 2. A. listened 3. A. community 4.A. needed |
B. question B. opened B. computer B. opened |
C. action C. wanted C. museum C. wanted |
D. education D. lived D. customs D. decided |
2. Choose the word which has a different stress pattern from the others. (0,4 pts)
|
1. |
A. |
concentration |
B. |
composition |
C. |
consideration |
D. |
conversation |
|
2. |
A. |
coordination |
B. |
depression |
C. |
donation |
D. |
erection |
|
3. |
A. |
foundation |
B. |
location |
C. |
organization |
D. |
performance |
|
4. |
A. |
affection |
B. |
recognition |
C. |
contribution |
D. |
animation |
áp dụng tính chất dãy tỉ số bằng nhau