Tính  2 3 : 7 12 : 4 18

A.  7 18

B.  9 14

C.  36 7

D.  18 7

Năm nay mẹ của Mai 40 tuổi, tuổi của Mai bằng 1 4  tuổi của mẹ . Hỏi Mai sinh năm nào? 

A. 2009

B. 2010

C. 2018

D. 2019

Kí hiệu  z 1 ,   z 2 là hai nghiệm phức của phương trình z 2 + z + 2 2018 = 0 . Tính | z 1 | + | z 2 | .

A.  2 2019

B.  2 1019

C.  2 1010

D.  2 2018

Fill in each numbered blank with one suitable word or phrase.

The Jakarta International Java Jazz Festival is one of the largest jazz festivals in the world and brings together the incredible musical (1) _______ of Indonesia as well as international artists who have made their  (2) _______ in the world of jazz. Held annually for 3 days in early March since 2005, the festival has been packing in the crowds from Australia, New Zealand, Europe and other Southeast Asian countries. The Sabah International Folklore Festival was created in 2001 to coincide with the state’s biggest cultural event, the Harvest Festival, (3) _______ music and dance is an (4) _______ part of the celebration. Folk dancers from 11 countries as diverse as Poland, Taiwan and Argentina come together to join with their musical (5) _______ in Malaysia. Sarawak has two annual music festivals covering two very different music (6)_______. The Miri International Jazz Festival will be held in Miri in May. (7)_______by the Sarawak Tourism Board, the festival enters its 5th year highlighting performances from jazz bands from various countries and their (8) _______ form of jazz which includes blues, fusion, smooth and Latino beats. Event organizers are trying to (9) _______over 8,000 jazz lovers to the festival this year. Another music festival is the Rainforest World Music Festival to be staged at picturesque Sarawak Cultural Village next to the mystical mountain Santubong. Bands from USA, Portugal, Tanzania, New Zealand, Poland, France and Korea are lined up to perform as well as local Malaysian bands. World music (10) _______together with the locals, and a growing number of tourists are expected to turn up.

 Question 2:

A. displays

B. quality

C. features

D. level

Số thập phân gồm 18 đơn vị, 8 phần mười  và 6 phần nghìn được viết là

A. 18,86

B. 18,806

C. 18,086

D. 18,608

Tìm số tự nhiên x biết:

a) 2,75 < x < 3,05

x là: ……………..

b) 10,478 < x < 11,006

x là: ……………..