MÀU ÁO ANH HÙNG 

GHEN CÔ VY ..........V...........V 

HOK TỐT

                                                              LỜI BÀI HÁT GHEN CÔ VY

Dạo gần đây, có một virus rất hot 

Tên của em ấy là CORONA

Bao ngày qua em tạo ra bao sóng gió 

Đang bình yên bỗng chợt thoát ra

Chắc chắn ta nên nâng cao cảnh giác 

Đừng để em ấy phát tán 

Chắc chắn ta nên quyết tâm tự giác 

Để dịch bệnh không bùng cháy lên 

Cùng rửa tay xoa xoa xoa xoa đều 

Đừng cho tay lên mắc mũi miệng

Và hạn chế đi ra nơi đông người 

Đẩy lùi virus CORONA CORONA

Luôn nâng cao sức khỏe

Và vệ sinh không gian xung quanh mình 

Cùng nâng cao ý thức của xã hội

Đẩy lùi virus CORONA CORONA 

Tuy nhỏ bé,nhưng mà em rất tàn ác 

Bao người phải chết vì chính em 

Tuy rằng khó, nhưng toàn dân luôn cố gắng 

Không để em tiếp tục lớn thêm 

Chắc chắn ta nên nâng cao cảnh giác 

Đừng để em ấy phát tán 

Chắc chắn ta nên quyết tâm tự giác 

Để dịch bệnh không bùng cháy lên

Cùng rửa tay xoa xoa xoa xoa đều 

Đừng cho tay lên mắc mũi miệng

Và hạn chế đi ra nơi đông người

Đẩy lùi virus CORONA CORONA
Luôn nâng cao sức khỏe 

Và vệ sinh không gian xung quanh mình 

Cùng nâng cao ý thức xã hội

Đẩy lùi virus CORONA CORONA
Từng y bác sĩ luôn luôn hết lòng 

Từng người công nhân hay dân văn phòng 

Người dân nơi đâu cũng luôn sẵng lòng 

VIỆT NAM ta quyết thắng bệnh dịch,thắng bệnh dịch

Hôm nay ta sẵn sàng

Thì ngày mai ta luôn sẵng sàng 

Dù gian nan nhưng con tim không màng

VIỆT NAM ta quyết thắng bệnh dịch,thắng bệnh dịch.

                                                                 HẾT

Giáo dục công dân lớp mấy zậy bn

lop 11

A B M C D N h P a a

a) Vector cường độ điện trường tại M có phương và chiều được xác định như hình vẽ

Ta có \(|\overrightarrow{E_A}|=|\overrightarrow{MC}|=\frac{kq}{MA^2}=\frac{kq}{a^2+h^2}\)

\(\frac{MC}{MA}=\frac{MN}{2MP}\Rightarrow MN=\left|\overrightarrow{E_{AB}}\right|=\frac{2MC.MP}{MA}=\frac{2kqh}{\left(a^2+h^2\right)\sqrt{a^2+h^2}}\left(\frac{V}{m}\right)\)

b) Áp dụng BĐT Cauchy ta có:

\(E_{AB}=\frac{2kqh}{\sqrt{\left(a^2+h^2\right)^3}}=\frac{2kqh}{\sqrt{\left(\frac{a^2}{2}+\frac{a^2}{2}+h^2\right)^3}}\)

\(\le\frac{2kqh}{\sqrt{\left(3\sqrt[3]{\frac{a^4h^2}{4}}\right)^3}}=\frac{4kq}{3\sqrt{3}a^2}\)(không đổi)

Đạt được khi \(h=\frac{a\sqrt{2}}{2}.\)

Trang An scenic complex in Ninh Binh province is located on the southern edge of the Red River Delta, in the North of the Socialist Republic of Vietnam, about 90km southeast of Hanoi. The heritage has an area of ​​6,226 hectares, the buffer zone has an area of ​​6,026 hectares, mostly wetlands and rice fields.``

On June 25, 2014, in Doha (Qatar) capital, the World Heritage Committee of the United Nations Educational, Scientific and Cultural Organization (UNESCO) officially registered the Trang An Scenic Landscape Complex - Ninh Binh province on the list of World Cultural and Natural Heritage - the first mixed heritage of Vietnam and Southeast Asia. The outstanding global value of Trang An Scenic Landscape Complex is recognized by the World Heritage Committee based on three criteria: Culture (Criterion v), aesthe beauty (Criterion vii), and geology. fake

* Cultural values ​​(Criterion v):

Trang An is the most prominent site in Southeast Asia and holds global significance in demonstrating how humans interact with the natural landscape and adapt to the enormous changes in the environment during the period. over 30,000 years. The long cultural history here is closely associated with the geological development of the Trang An limestone massif in the late Canh Tan and Toan Tan periods. This was a period when local residents experienced some of the most extreme clima and environmental fluctuations in earth's history, including the constant flooding of the landscape with water due to sea level fluctuations. In such a compact landscape, there are many sites with different stages and functions, including a unique system of prehistoric human habitation.

*Aesthe value (Criterion v):

Trang An's karst tower landscape is among the most beautiful and fascinating of its kind in the world. Dominating the landscape is a series of 200m high stone towers covered by forests linked together in many places through sharp ridges, embracing deep flooded valleys connected through countless underground caves. Mixed with the forests are rice fields stretching along rivers, with farmers and fishermen living in their traditional way. Visitors traveling on traditional boats steered by local guides can experience the natural environment, feeling comfortable, safe and peaceful. The majes mountains, mysterious caves and sacred temples, pagodas, shrines and palaces in Trang An have inspired people for generations. This is where culture meets the magic, mystery and splendor of the natural world, and where culture is transformed by it.

* Values ​​of geology and geomorphology (Criterion v):

Trang An is a wonderful geological heritage that shows more clearly than other places in the world the final stages of karst evolution in a humid tropical environment. This is an excellent and outstanding model on a global scale. The deep cleavage of an uplifted limestone block over a period of more than 5 million years has created a series of classical landscapes, including towers, cones, closed depressions (or sinkholes), valleys, and valleys. inward drainage valleys (or basins), base caves and underground passages through caves with sediments in them. Of great significance is the presence of transitional forms between the “fengcong” karsts with ridges connecting the towers, and the “fenglin” karst where the towers stand discretely on the alluvial plain. Canh Tan and Toan Tan, the landscape has been completely changed due to many times of sea advance and retreat. marine sediments and shellfish layers.

* Management of the heritage area: Most of the area of ​​the heritage is located in 03 protected areas according to the regulations of the national conservation areas, including: Hoa Lu Ancient Capital Historical and Cultural relic, Trang An - Tam Coc - Bich Dong scenic area, Hoa Lu endemic primeval forest. Management Board of Trang An Scenic Landscape Complex - An agency under the Department of Tourism responsible for heritage management. The Management Board has the capacity and resources to protect and manage the site according to the standards of a World Heritage site. The Management Board represents all stakeholders and maintains relationships with ministries, sectors, research institutes, commercial organizations, representatives of local communities and the general public. Heritage management is conducted according to the management plan, approved by the government and provincial authorities, with input from the local community and stakeholders in the Heritage site.

Trang An Scenic Landscape Complex, recognized as a World Heritage Site, is famous for its cultural value, natural beauty, geological value, and preservation of heritage. The most outstanding feature of this site is its cultural value. Trang An is a prominent place in Southeast Asia and the world that contains abundant archaeological evidence including discovered signs of human activity dating back almost 30,000 years. The natural beauty of the place is another attractive characteristic. Trang An - Tam Coc - Bich Dong not only has a natural scenic landscape but also is an ecological site. With a spectacular landscape of limestone peaks permeated with valleys, some of which are submerged, and surrounded by steep, almost vertical cliffs, Trang An Eco-tourist Site is considered an outdoor geological museum. With such a long-lasting history, Trang An Scenic Landscape Complex is also home to more than 800 species of flora and fauna. Having met UNESCO criteria for outstanding universal value to humanity, Trang An Scenic Landscape Complex was added to the World Heritage Site List in 2014 as a mixed natural and cultural property.

\(f\left(x\right)=-x^3-2x^2+mx-3\)

\(f'\left(x\right)=-3x^2-4x+m\)

\(f'\left(x\right)>0\Leftrightarrow-3x^2-4x+m>0\Leftrightarrow m>3x^2+4x\)(đúng với mọi \(x\in\left(0,1\right)\))

suy ra \(m\ge max\left(3x^2+4x\right)\)với \(x\in\left[0,1\right]\).

Xét hàm \(g\left(x\right)=3x^2+4x\)với \(x\in\left[0,1\right]\).

\(g'\left(x\right)=6x+4\)

\(g'\left(x\right)=0\Leftrightarrow6x+4=0\Leftrightarrow x=-\frac{2}{3}\notin\left[0,1\right]\).

\(g\left(0\right)=0,g\left(1\right)=7\)

suy ra \(g_{max}=7\)

do đó \(m\ge7\).

Mà \(m\)nguyên, \(m\in\left[-2021,2021\right]\)nên có tổng cộng: \(2021-7+1=2015\)giá trị của \(m\)thỏa mãn. 

Đề bài là: Viết lại những câu này bằng mệnh đề tương đối với giới từ

Chuyển thành câu có Mệnh Đề Quan Hệ

 Carol plays the piano brilliantly. She is only 9 years old.

=> who is only 9 years old, plays the piano brilliantly

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+ Cách dùng: Where là trạng từ quan hệ chỉ nơi chốn, đứng sau danh từ chỉ nơi chốn. Where được dùng thay thế cho at/ in/ to which / there. + Ex: Ha Noi is the place where I to come. + Cách dùng: Which là đại từ quan hệ chỉ vật , đứng sau danh từ chỉ vật để làm chủ ngữ hoặc tân ngữ cho động từ đứng sau nó.