Brighter Future "is a television program of my favorite. Program profound humanitarian, helping the unfortunate lives, wants children to get a home, a chance to go to school. Program as a bridge between the people to live in affluence with solitary children, disadvantaged ... It also brought a precious tradition of the nation: "Nhuong Com will dress". And particularly, it is also a chance for the young know look at the children in the program to strive for in life and learning.

1.The government initiated the programme of  ................    reform in the 1980s.

A. economist              B. economically              C. economised              (D). economic

2. A scientist who studies living things is a.......... 

(A). biology              B. biologist              C. biologically              D. biological

(A) là khoanh

Sửa lại:He was angry when he saw what was happening.

Paris is the capital city of France, as well as the administrative center of the Île-de-France region. Located at the juncture of the trade journey by road and river, Paris soon became a center of politics, culture and religion. In the 10th century, it was one of the main urban centers of France with the royal palace, the cathedral, the monastery. From the 12th century, the city became one of Europe's centers of education and art. 14th century, Paris is the most important city of Christianity and in the 16th century, 17, this is the place where the French Revolution and many important historical events in France and Europe. 19th and 20th century, the city became one of the cultural centers of the world, the capital of art and entertainment.

Famous with the name City of Light, Paris is a major cultural center of the world and also one of the cities best tourist attraction. The excitement, the architecture and atmosphere of Paris artists helped each year to 30 million foreign visitors. The city is regarded as the capital of high fashion luxury with many neighborhoods with large commercial centers. Which housed the headquarters of international organizations such as OECD, UNESCO ... plus the various activities in finance, business, politics and tourism has led Paris to become one of the transit center the largest in the world and is regarded as one of the four "global city" along with New York, London and Tokyo.

Bài giải : Diện tích tam giác MDC =  = 20 cm²

tóm tắt:
10 chàng trai 10 con cá 5 phút
50 chàng trai 50 con cá x phút

Do là tỉ thuận. Nên tỉ số của 2 đại lượng này bằng tỉ số 2 đại lượng kia

Suy ra: 10 phần 50 = 10 phần 50 = 5 phần x = 1 phần 5 

Suy ra: x=25

Vậy 50 chàng trai cau 50 con cá trong 25 phút

ta có 1/50>1/100

1/51>1/100

1/52>1/100

................

1/99>1/100

suy ra S=1/50+1/51+1/52+..........+1/99>1/100x50=1/2

suy ra S=1/2

Bài này ta có thể làm như sau 
1/1.2=1/1-1/2 
1/2.3=1/2-1/3 
................... 
1/2005.2006=1/2005-1/2006 
Ta cộng vế cho vế ta được 
A=1/1.2+1/2.3+1/3.4+...+1/2005.2006=1/... 
A=2005/2006<1

=>đpcm

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gọi số người là a thì khối lượng công việc khi đủ người là 10a 
làm xong 7 ngày thì khối lượng cong việc đã xong là 7a và khối lượng còn lại là 3a 
đáng lẽ hoàn thành khối lượng còn lại trong 3 ngày nhưng có 8 người chuyển di nên hoàn thành trong 12-7=5 ngày =>khối lượng công việc còn lại dược tính 5*(a-8) 
ta có 3a=5(a-8) =>a=20 người