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sugy123321
2 năm trước
giúp mình với mình cần gấp ạ a)10-√3-√39-12√3 b) $\frac{6}{√7+1}$- $\frac{3}{√7-2}$+ $\frac{18}{√7+5}$ c) ($\frac{√6-√3}{1-√2}$ + $\frac{√5-√15}{√3-1}$) $\frac{1}{√3-√5}$ Lưu ý:12√3 nằm trong √39 nha
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The "Land of Million Elephants" no longer has anything like that yet a great deal of the natural environment survives and Laos tour packages are certain to reveal that to every visitor. Laos is the smallest of the countries of Indochina, covering just under 240,000 square kilometres much of which is mountainous. Its population is 7.2 million the majority living in the lower lying areas in the south of this landlocked country. It has borders with China in the north, Myanmar in the north west, Thailand in the west, Cambodia in the south and Vietnam in the east. The majority of the population are Lao Loum (67%) with Lao Theung and Lao Soung making up the balance except for a few Vietnamese and Chinese. Over the years, it has been invaded by neighbours coming from all directions and was a French ‘colony’ for a period until the resolution of the independence struggle that began in earnest after World War II. True or False : 1.Laos is the smallest country in South East Asia. 2.The neighboring countries of Laos are Myanmar, China, Thailand, Cambodia and Vietnam. 3.Laos used to be a French colony. 4.Laos achieved its independence before World War II. Choose the best option: 1.The word has the nearest meaning as “ struggle” is ______ A. peace B. quietness C. contract D. fight 2.What is the main idea of the passage? A.Countries in Indochina Peninsula. B.An introduction to Laos country. C.The development of Laos after World War II . D.Elephants in Laos.

It's said that Vietnam is the exotic tourist destination that famous for the warmth of the people, the long history, rich culture and customs of 54 minorities' ethnic group. Beside, the country also attracts more and more tourists with the variety of the stunning natural landscapes. Vietnam is also proudly to be location of 7 World Heritage Sites and many Intangible Cultural Heritages recognized by UNESCO, as well as the unique cultural values from the North to the South which contribute to an amazing and mysterious Vietnam. Recently, Vietnam is well-known as a wonderful destination in Southeast Asia with stable security and reasonable cost. Moreover, this is also a peaceful land with various beautiful sites and time-honored tradition. Vietnam is located in the southeast of Indochinese Peninsula and covers an area of more than 330,000 square kilometers (128,000 square miles). Vietnam’s topography is very diverse with mountains, hills, plains, coasts and continental shelf. Vietnam’s climate is typical for the tropics: the weather all around the year is in high temperatures and humidity. Although Vietnam’s territory just covers an area of more than 330,000 square kilometers, there are several ecosystems that can be found in Vietnam including terrestrial ecosystems, wetland ecosystems and marine ecosystems. True or False : 1. UNESCO has never recognized any World Heritage Sites in Vietnam. 2. Vietnam experiences the temperate climate all around the year. 3. Vietnam has lots of good conditions to develop its tourism. 4. Vietnam is located in North East Asia. Choose the best option : 1. The word “marine” means ______ A. connected with the air B. life on earth C. big ships D. connected with the sea 2. What is the main idea of the passage? A.History of Vietnam. B.The fights for peace of Vietnamese people. C.Vietnam overview. D.Vietnam education and tourism.

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