Cho tam giác ABC cân đỉnh A nội tiếp trong đường tròn tâm O. Gọi M, N, P lần lượt là các điểm chỉnh giữa các cung nhỏ AB, BC, CA; BP cắt AN tại I; MN cắt AB tại E. Chứng minh rằng: 

1.    Tứ giác BCPM là hình thang cân; góc ABN có số đo bằng 90⁰.

2.    Tam giác BIN cân; EI // BC.

Think of one word which can be used appropriately in all three sentences.

1. Try to keep your room ______ and tidy for when your friends come round.

After examining me, the doctor gave me a _____ bill of health.

You should make a _____ break and tell Joel you don't want to see him again.

2. We hope it won't be too long before we start a ______.

My dad thought that the whole thing reflected badly on the _____ name.

Our dog's got a great personality and we all treat her like a ______ member.

3. I moved to Birmingham, determined to make a ______ start.

Let's take a _____ look at the problem.

The new manager is ______ from university and doesn't have much experience, in my opinion.

4. There's a crack in the _____ of my glass.

He had started at the ______ and worked his way up to become a manager.

The police officer was determined to get to the _____ of things and asked a lot of questions.

5. The magazine is printed on low _____ paper.

What's the most important ______ you look for in someone applying for a job here?

Ask yourself whether you sped enough ______ time with your children?

surgical surround surprise survival

Giải thích vì sao hộ mình luôn với ạ.

Color blindness affects almost five percent of the (1)______ and far more men than women. Difficulty (2)______ between color, particularly red and green, is an interested (3)_____. It rarely causes (4) _______ problems. A child soon learns that grass is green and blood is (5)______ or that the top light is red and the bottom light is green on a column of (6)______ lights. For most people, there is problem living with color (7) ______. It does not (8)_____ a person becoming a lorry driver or a bus driver. Some color blind people even (9)_____ painters or fashion designers. There are a few jobs where perfect color (10)______is essential, such as an airline pilot or electrician.

1. A. people B. country C. population D. world

2. A. distinguishing B. extinguishing C. telling D. calling

3. A. effect B. defect C. influence D. affection

4. A. unimportant B. serious C. strict D. important

5. A. white B. yellow C. red D. blue

6. A. street B. traffic C. home D. office

7. A. light B. dumbness C. deafness D. blindness

8. A. prevent B. persuade C. encourage D. help

9. A. ignore B. stop C. give up D. become

10. A. vision B. division C. affection D. blindness

301 day minh vua thi xong 300/300 luon dung 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Cách dùng của Contrary to: