Đọc lại văn bản “Vượt Thác” em có nhận xét gì về tâm hồn nhà văn Võ Quảng?

Giúp mk ạ Chứng tỏ : 1) (a-b+c) - (a+c) = -b 2) ( a+b) - ( b-a ) + c= 2a +c 3) - (a+b-c) + (a-b-c) = -2b 4) a(b+c)- a(b+d) = a(c-d) 5) a(b-c) + a(d+c) =a(b+d) cảm ơn mn mk hứa sẽ vote 5 sao ạ

Giúp mình câu cuối với ạ mình cảm ơn :33

câu 3, 4, 5 thôi ạ cố gắng k copy nhau giúp em với em cảm ơn em vote 5* và câu trả lời hay nhất cho ạ iuiu

C. READING I. Read the following paragraph and complete it which one suitable word in each blank. I was very excited to know that I was going to Australia for a study tour (1) ……… four months. I didn’t think (2) …………… the problems of speaking English until I met my host family. At first, I couldn’t communicate (3) ………… them because my English was so bad. All the eight years I had been learning English wasn’t much used at all because we didn’t have real practice at school. Even (4) …………. my grammar was good, my pronunciation wasn’t. My problem is pronouncing “I’ and “n”. For (5) …………, I wanted to tell them that “I have lots of homework today,” but I said “I have nots of homework today,” so they misunderstood me. My host mum (6) ……….. me a lot by correcting my bad pronunciation. I usually practiced by talking to (7) …………… when I had a shower, so no one could hear me. After four months, my English was (8) …………. Better. Apart from English, I learnt to make my (9) ……….. breakfast and lunch. I had to ride a bicycle to school every day. I went swimming and tried sailing. Sometimes I also tried skiing. It was wonderful. But (10) ……….. most valuable thing was that I learnt to be by myself and to be independent. II. Read the text and answer the questions below In Canada and the United States, one of the most popular days in the year is Halloween. Halloween is on October 31st. It’s a day when some people dress up in strange or unusual costumes. For example, they may dress up to look like an animal, a person from a book or movie or a famous person from history. In some places, children go to school in their Halloween costumes. After dark, many young children put on their costumes and visit their neighbours. They knock on the door and shout “Trick or treat!”, then the neighbours give them some candy or chocolate, and the children go on to the next house. Adults also enjoy dressing up for Halloween. There are usually Halloween parties in the evening and usually there is a prize for the best or most unusual costume. 1. What is one of the most popular days in the year in Canada and the United States? 2. Who do some people dress up to look like on Halloween? 3. What do some children in some places in Canada and the United States wear when they go to school on Halloween? 4. What do many young children do in the Halloween’s evening? 5. What are usually there in the Halloween’s evening? III. Choose the correct word A, B, C or D for each gap to complete the following passage. Ball Games It’s summer and a stadium in the USA is full (1) ……… 40,000 excited fans. Suddenly everyone stands up and sings the American (2) ………. anthem. The game between the New York Yankees and the Boston Red Sox is going to (3) ………… soon. The game? Baseball of course! Modern baseball (4) ………… in the USA and the sport is an important part of American life. Traditionally people go to a game with all their family. It’s very (5) ………, sociable and noisy, and spectators eat, drink and sing during the game. The Yankees and the Red Sox are (6) ………… teams. There are also professional baseball leagues in Asia and Latin America. It’s an Olympic sport, too. In England, a few thousand supporters are sitting in the rain. There aren’t any players on the pitch. They’ll continue the match (7) …………… it stops raining. If it doesn’t stop, neither team will win or lose-it’ll be a draw. What’s the sport? Cricket! Although England is the (8) ……….. of cricket, the places where cricket is most popular are hot and sunny – Australia, South Africa, South Asia and the Caribbean. A cricket match (9) ………. for a long time – sometimes five days – and each day there are breaks for lunch and tea! However, now there is few, faster version of cricket called Twenty20. There’s pop music and the (10) ………. at the ground is more exciting. Some people think that Twenty20 will replace traditional cricket one day. 1. A. in B. on C. of D. up 2. A. national B. nation C. nationality D. nationally 3. A. have B. start C. show D. go 4. A. took B. started C. began D. originated 5. A. interested B. relaxing C. tired D. bored 6. A. profession B. professionally C. professional D. professionalize 7. A. unless B. where C. if D. Though 8. A. home B. place C. area D. house 9. A. carries B. takes C. makes D. lasts 10. A. air B. atmosphere C. feeling D. surroundings Help tớ vơi các cậu!

Mấy bạn ơi , mấy bạn vào làm giúp mình bài này với !

GIẢI GIÚP MÌNH VỚI 1) Khó khăn trong quá trình phát triển công nghiệp của vùng đông nam bộ là gì ? 2) Trong nông nghiệp vùng đông nam bộ đã phát triển các hoạt động kinh tế gì ?

Câu 1: Đoạn trích Bài học đường đời đầu tiên được trích từ tác phẩm nào? A. Đất rừng phương Nam. B. Dế Mèn phiêu lưu kí. C. Thầy thuốc giỏi cốt nhất ở tấm lòng. D. Những năm tháng cuộc đời. Câu 2: Hai nhân vật chính trong đoạn trích trên là ai? A. Mẹ Dế Mèn và Dế Mèn. B. Dế Mèn và chị Cốc. C. Dế Mèn và Dế Choắt. D. Chị Cốc và Dế Choắt. Câu 3: Câu nào dưới đây không nói về tác phẩm Dế Mèn phiêu lưu kí? A. Đây là tác phẩm đặc sắc và nổi bật nhất của của Tô Hoài viết về loài vật. B. Tác phẩm gồm có 10 chương, kể về những chuyến phiêu lưu đầy thú vị của Dế Mèn qua thế giới những loài vật nhỏ bé. C. Tác phẩm được in lần đầu tiên năm 1941. D. Tác phẩm viết dành tặng cho các bậc cha mẹ.

A= {(0.4-2/9=2/11)/(1.4-7/9=7/11)-(1/3-0.25=1/5)/(1/1/6-0.876+0.7)};2018/2019 M.n giúp mk vs ạ..! Thanks♥♥

Một tấm bìa hình thang có tổng độ dài hai đáy là 24dm, diện tích là 102dm2. Tính chiều cao của tấm bìa hình thang đó.