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thế này thì đến thế kỉ sau vẫn không ai trả lời được >_<
tớ bt câu 3 đáng thắng quân thù là mik thắng quân thù đáng bại quân thù là quân thù bị mình đanh cho bại trậ
đánh thắng / quân thù
đánh / bại quân thù
Đặng Anh Thư à :))
câu cuối xin ra gợi ý là ( "ở trên' là gì trong tiếng anh )
tí nữa mình sẽ xem và kết bạn nha!!
My hometown is very sunny and rainy area. The early summer rains always bring freshness to my hometown. Yesterday afternoon there was a rain that. It was sunny, the air was dreary and hot, not even a breeze blew through. The trees stood still. The sun was a stove "catching hell" on the ground. Rows of ragged bananas stand. My dog sprawled on the porch, sking his tongue out of breath because he could not stand the heat. Suddenly it was sunny and darkened right away. He feared where the sun went away. Seeing that, chickens fluttered into the barn because it was about to get dark. From afar, I heard the sound of the wind rushing back and forth. Black clouds also invite each other to rush. Clouds heavy steam covered the whole black sky. Each time a strong wind jerked, picking up clouds of dust as if landing on people on the road. On the way, people are getting sparse. Everyone tried to kick fast to get home from the wet. Then, thunder exploded. Lightning ripped through the black sky. The rain began to drizzle on the corrugated iron roof. The sound of the rain in the deck in the drums, on the bamboo leaf, tapping on the banana leaves
chúc bn học tốt
task
I live in Hoa Binh, a small city in Hoa Binh. Hoa Binh is very beautiful. There is a river, many mountains. Nice weather. Humans are friendly. Good and cheap food. There are 2 shopping centers, there are many restaurants and hotels. There is a big bridge. There are many buses to Hanoi. About 15 minutes a trip. I think Peace is a great place.
nếu vừa ý bạn thì nhé!!!
học tốt!!!^_<
I live in Hoa Binh, a small town in Hoa Binh. Peace is very beautiful. There is a river, many mountains. The weather is pretty. Humans are friendly. The food is delicious and cheap. There are 2 shopping centers, there are many restaurants and hotels. There is a big bridge. There are many bus to Hanoi. About 15 minutes a trip. I think Peace is a great place.
Bạn nói rất đúng cho 10 điểm
và đoạn văn Tiếng Anh ưa thích của mk:
FAMILY
I cannot imagine living my life without my family by my side. Family is very important and valuable to me and is something that should never be taken for granted. Without my family, a large part of my life and culture would be missing.
Whether it’s my grandparent, my two sisters, my mom, or my dad, I know I can always count on someone to help me feel better. In fact, I think that this is probably the most important thing that my family has taught me; a family is made up of people who you can trust and who you can count on.
Too many times today, we read in the papers about families where parents abuse their children, verbally and physically. What these parents don’t realize is that they are either beginning or involving themselves in a vicious circle of hate in families. When parents abuse their children, they are telling their children that that is the way to raise children, and this is what their children learn. I was lucky, I have learned differently, because my family cares about me, and I care about them.
In this world of doubt, insecurity, and fear, my family is always there for me, holding their arms open to me with love. On the first day of first grade, I didn’t want to go to school, I had butterflies in my stomach and I found it difficult to walk because I was so nervous. The only reason that I finally went into the classroom is because my mom walked in with me, and promised me that as soon as school was out, she’d be there waiting for me, ready to bring me back to where I felt most comfortable, my family.
Luckily, I’m a little more grown up now; I can go into school by myself, and in a couple of years, when I go away to college, I’ll really have to go to school by myself. There will be no one who I will know at college. Of course I know I’ll make friends, but none of them will mean as much to me as my family does.
tk cho mk nhá
Bạn nói rất đúng.Mình cũng cảm thấy như bạn nhưng ko dám nói vì sợ báo cáo và cảm ơn bạn đã nói hộ tiếng lòng của mình
Bài 1:
Gọi thời gian hai xe đi lần lượt là \(t1\)và \(t2\); có vận tốc tương ứng là \(v1\)và \(v2\);
Gọi quãng đường AB đó là S
Theo đề bài ta cheo đề bài:
\(t1-t2=9-6=3\)
\(\Rightarrow t1=3+t2\)
\(\hept{\begin{cases}S=v1\cdot t1\\S=v2\cdot t2\end{cases}}\Rightarrow v1\cdot t1=v2\cdot t2\)
Mà theo đề bài: \(v1=45;v2=60\)
\(\Rightarrow45\cdot t1=60\cdot t2\)
\(\Rightarrow\frac{t1}{t2}=\frac{60}{45}=\frac{4}{3}\)
Mà \(t1=3+t2\)
\(\Rightarrow\frac{3+t2}{t2}=\frac{4}{3}\)
\(\Rightarrow\frac{3}{t2}+1=\frac{4}{3}\)
\(\Rightarrow\frac{3}{t2}=\frac{4}{3}-1=\frac{1}{3}\)
\(\Rightarrow t2=3:\frac{1}{3}=9\)
Vậy quãng đường AB dài 60 x 9 = 540km
Bài 2: Thể tích của bể là:
\(369:\frac{2}{3}=553,5\left(m^3\right)\)
Chiều cao của bể là:
\(\frac{553,5}{22,5\cdot16,4}=1,5\left(m\right)\)
Đáp số: 1,5 m
Gọi số xe 4 bánh chở 5 tấn là a ; 6 bánh chở 5 tấn là b ; 8 bánh chở 8 tấn là c
Ta có a + b + c = 25 (1)
=> 4 x a + 4 x b + 4 x c = 100 (2)
Lại có 4 x a + 6 x b + 8 x c = 156 (3)
5 x a + 5 x b + 8 x c = 152 (4)
Lấy (3) trừ (2) theo vế ta có
4 x a + 6 x b + 8 x c - (4 x a + 4 x b + 4 x c) = 156 - 100
=> 2 x b + 4 x c = 56
=> 2 x (b + 2 x c) = 56
=> b + 2 x c = 28 (5)
Lấy (1) cộng (3) trừ (4) theo vế ta có
a + b + c + 4 x a + 6 x b + 8 x c - (5 x a + 5 x b + 8 x c) = 156 + 25 - 152
=> 5 x a + 7 x b + 9 x c - 5 x a - 5 x b - 8 x c = 29
=> 2 x b + c= 29
=> 2 x b + c - 1 = 28 (6)
Từ (5) (6) => b + 2 x c = 2 x b + c - 1
=> b = c + 1
Khi đó (5) <=> (c + 1) + 2 x c = 28
=> c x 2 + c + 1 = 28
=> 3 x c = 27
=> c = 9
=> b = 10
=> a = 25 - 9 - 10 = 6
Vậy số xe 4 bánh chở 5 tấn là 6 ; 6 bánh chở 5 tấn là 10 ; 8 bánh chở 8 tấn là 9
1.There is a bakery in front of my house
2. There are bookstores near Chi's house
3. The pictures on the wall
4. My parents work in a factory
5 . The garden behind the yard
6 . Thuy's house in the country
7. The bank near the park
8. There is a stadium on Nguyen Du Street
9. There is a ball under the seat
10. There are two desks in the middle of the bed and a bookcase
Translate into English :
1: There is a bread line in front of my house
2: There are 3 bookstores near Chi's house.
3: The pictures on the wall.
4: My parents work in the factory
5: The garden is behind the yard.
6: Thuy's house in the countryside.
7: bank next to the park.
8: There is a stadium on Nguyen Du Street.
9: There is a ball under the seat.
10: There are two desks in the middle of the bed and the bookcase.
không vì con chim nó k bel
ko vì con chim chưa nặng đc 1 kg
Cầu không bị sập, vì xe đang chạy nên trong lúc qua cầu xe đã tiêu hao một phần nhiên liệu, làm tổng trọng lượng xe giảm đi một chút, phần giảm này có thể bù cho trọng lượng của con chim bồ câu, nên tổng trọng lượng vẫn không vượt quá 10 tấn.
oh
Không
Thứ nhất : Cầu được thiết kế trongj tải là 10 tấn , nhưng sẽ có định mức chịu tải gắng 20% do thiết kế , mức chịu tải được các kĩ sư cầu đường tính toán , dù cho 1 hay 10 con chim thì cầu cũng sẽ ko gãy
Thứ 2 thứ làm cho cầu gãy đó là tính toán chịu lực sai và ngoại lực( cộng hưởng, sự mỏi của thép, sắt ,..)
#HUCE