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Đặng Hoàng Long
5 tháng 1 2019 lúc 22:14

38

Hiểu nhầm,thôi bỏ qua ik bn

Linh Hương
5 tháng 1 2019 lúc 22:16

Trả lời : 

19 + 19 = 38

Hok tốt

Trần Thu An
5 tháng 10 2021 lúc 17:43

`19 + 19 = 38`

HT!

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Trần Thị Minh Giang
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Nguyễn Đức Hiếu
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Nguyễn Quỳnh Trang
4 tháng 12 2018 lúc 12:24

Ha Long Bay (Vietnamese: Vịnh Hạ Long) is a UNESCO World Heritage site located in Quảng Ninh province, Vietnam. The bay features thousands of limestone karsts and isles in various sizes and shapes. 

Etymology 
======== 
Local legend says that long ago when the Vietnamese were fighting Chinese invaders, the gods sent a family of dragons to help defend the land. This family of dragons began spitting out jewels and jade. These jewels turned into the islands and islets dotting the bay, linking together to form a great wall against the invaders. The people kept their land safe and formed what later became the country of Vietnam. After that, dragons were interested in peaceful sightseeing of the Earth and decided to live here then. The place where Mother Dragon flew down was named Hạ Long, the place where the dragon children attended upon their mother was called Bái Tử Long island (Bái: attend upon, Tử: children, Long: dragon), and the place where the dragon children wriggled their tails violently was called Bạch Long Vỹ island (Bạch: white- colour of the foam made when Children Dragon wriggle, Long: dragon, Vỹ: tail). 

Geographical location 
=============== 
Halong bay is in northeastern Vietnam, from E106°56' to E107°37' and from N20°43' to N21°09'. The bay stretches from Yên Hưng district, past Hạ Long city, Cẩm Phả town to Vân Đồn district, bordered on the south and southeast by the Gulf of Tonkin, on the north by China and on the west and southwest by Cát Bà island. The bay has a 120 kilometre long coastline and is approximately 1,553 square kilometres in size with 1969 islets. The area designated by UNESCO as the World Natural Heritage Site includes 434 km² with 775 islets, of which the core zone is delimited by 69 points: Đầu Gỗ island on the west, Ba Hầm lake on the south and Cống Tây island on the east. (bullshit) The protected area is from the Cái Dăm petrol store to Quang Hanh commune, Cẩm Phả town and the surrounding giants zone. 

Climate 
===== 
The bay is a sea islands in tropical wet with 2 seasons: hot and moist summer, dry and cold winter. Average temperature is from 15°C- 25°C. Annual rainfall is between 2000mm and 2200mm. Halong bay has the typical diurnal tide system (tide amplitude ranges from 3.5-4m). The salinity is from 31 to 34.5MT in dry season and lower in rainy season. 

History 
===== 
Soi Nhụ culture (16000- 5000 BCE) 
Located in Hạ Long and Bái Tử Long, there are symbolic archaeological sites such as Mê Cung, sexest bay, and Thiên Long. There are mounds of remains of mountain shellfishes (Cyclophorus) and spring shellfishes (Melania), some fresh water mollusk and some rudimentary labour tools. The main living procedures of Soi Nhụ's habitants were catching shellfish and fish, collecting fruits and digging for bulbs and roots. Their living environment is coastal area un other Vietnamese cultures, for example those found in Hoà Bình, Bắc Sơn, etc. 

Cái Bèo culture (5000- 3000BCE) 
Located in Hạ Long and Cát Bà island, its habitants developed to the level of sea exploitation. 

Hạ Long culture (2500- 1500BCE) 

Feudal period 
----------------- 
History shows that Halong Bay has been the setting for local naval battles against Vietnam's coastal neighbours. On three occasions in the labyrinth of channels in Bach Dang river near the islands the Vietnamese army stopped the Chinese from landing. In 1288 General Tran Hung Dao stopped Mongol ships from sailing up the nearby Bach Dang River by placing steel-tipped wooden stakes at high tide, sinking the Mongol Dubhai Khan's fleet. 

During the Vietnam War, many of the channels between the islands were heavily mined by the navy of the United States, some of which pose a threat to shipping to this day. 

The surrounding land region of Halong City is rich with high grade coal deposits (anthracite), and is operated by the Vietnamese government. 

System of isles and caves 
=================== 
The bay consists of a dense cluster of 1,969 limestone monolithic islands, each topped with thick jungle vegetation, which rise spectacularly from the ocean. Several of the islands are hollow, with enormous caves. Hang Đầu Gỗ (Wooden stakes Cave) is the largest grotto in the Halong area. French tourists visited in the late 19th century, and named the cave Grotte des Merveilles. Its three large chambers contain large numerous stalactites and stalagmites (as well as 19th century French graffiti). There are two bigger islands, Tuan Chau and Cat Ba, that have permanent inhabitants. Both of them have tourist facilities, including hotels and beaches. There are a number of wonderful beaches on the smaller islands. 

Some of the islands support floating villages of fishermen, who ply the shallow waters for 200 species of fish and 450 different kinds of mollusks. Many of the islands have acquired their names as a result of interpretation of their unusual shapes: such names include Voi Islet (elephant), Ga Choi Islet (fighting cock), and Mai Nha Islet (roof). 989 of the islands have been given names. Birds and animals including bantams, antelopes, monkeys, and iguanas also live on some of the islands. 

Civilization 
========= 
A community of around 1600 people live on Halong bay in four fishing villages: Cửa Vạn, Ba Hang, Cống Tàu and Vông Viêng in Hùng Thắng commune, Hạ Long city. They live on floating houses and are sustained by capture fishing and marine aquaculture (cultivating marine biota). 

Originally in Ha Long Bay there was only one fishing village. Now there are about ten. 

Honourable name 
=============== 
In 1962, Vietnam Ministry of Culture, Sport and Tourism arranged Halong Bay as National Renowned Lanscape Vestige. 

The bay was World's Natural Heritage listed by UNESCO at the 18th meeting of the Committee of the World Heritages of UNESCO (in Phuket, Thailand on December 17th, 1994) for its outstanding universal aesthe value according to the criteria explained in the Operational Guidelines for the Implementation of the World Heritage Convention. On December 2nd, 2000 at the 24th meeting of Committee of the World Heritages in Cairns, Australia, Halong bay was admitted as a World Heritage Site for its outstanding geological and geomorphological value according to the criteria of that Convention.[1] 

Halong bay was introduced to nominate by New Open World Foundation as World's 7 Natural Wonder having result on 08/08/2008.[1] 

Geology and geomorphology 
==================== 
History of tectonics 

Scientists say that Halong bay has experienced at least 500 million years in the various geological states of orogeny, marine transgression and marine regression. During the Ordovician and Silurian periods (500-410 million years ago), Halong bay was deep sea. During the Carboniferous and Permian periods (340-250 million years ago), Halong Bay was at shallow sea level. 

Biodiversity 
----------------- 
Ha Long Bay is host to two ecosystems: a tropical, moist, evergreen rainforest ecosystem and a marine & coastal ecosystem. The bay is home to seven endemic species. 

Endemic species 

Livistona halongensis 

Impatiens halongensis 

Chirieta halongensis 

Chirieta hiepii 

Chirieta modesta 

Paraboea halongensis 

Alpinia calcicola 

The many islands that dot the bay are home to a great many other species, including (but ly not limited to): 477 magnoliales, 12 pteris, 20 salt marsh flora and 4 amphibia, 10 reptilia, 40 aves, and 4 mammalia. 

Economy 
======== 
Tourism 

Ha Long Bay is perhaps the most popular travel destination of the country. Foreigners and natives a are attracted to its natural, universal appeal, not to mention the shopping and dining prospects located close by.

Nguyễn Đức Hiếu
4 tháng 12 2018 lúc 12:32

bn viết ngắn hơn và có nghĩa dịch đc ko

Nguyễn Ngọc Bảo Trân
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Phan Quốc Chiến
3 tháng 3 2016 lúc 19:07

Chỉ được mang nháp thôi

Hồ Quốc Thi
3 tháng 3 2016 lúc 19:18

1 tới lớp 3 chỉ được đem vở nháp còn 4 5 thì được đem máy tính bỏ túi 

chỉ nhiêu đó thôi

Trời Lạ
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huỳnh thị ngọc ngân
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Đỗ Nguyễn Như Bình
4 tháng 6 2016 lúc 15:27

mk cũng ko bít nữa mk chưa tải bao giờ hết ábucminh

Đặng Thị Cẩm Tú
4 tháng 6 2016 lúc 16:24

mk cx ko bk nữa nhưng mk nghĩ bn nên hỏi mấy bn có nhìu GP ấy

Erza Scarlet
4 tháng 9 2016 lúc 22:12

bn chưa đăng nhạp tk chứ sao 

Cao Nguyễn Thu Vân
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Cao Hiền Thảo
18 tháng 4 2020 lúc 19:02
ban chu g ui lui di .nhung hoclop mat namhay nu
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Bùi Minh Anh
18 tháng 4 2020 lúc 19:03

1 lần thôi bạn

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Nguyễn Thị Gia	Hân
18 tháng 4 2020 lúc 19:20

chỉ có 1 lần thôi bạn ơi

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Nguyễn Ngọc Tâm Liên
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Đồng Thị Hải Vân
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Đồng Thị Hải Vân
19 tháng 10 2018 lúc 12:36

Mong các em sẽ trả lời câu hỏi của cô !

nguyenthanhhang
20 tháng 10 2018 lúc 11:30

chắc em chịu cô ạ