Hai điện trở R1,R2 mắc nối tiếp với nhau vào hai điểm A, B, cho R1=6 ôm, R2=10 ôm, cường độ dòng điện qua mạch là 0,2A. Tính hiệu điện thế của đoạn mạch AB theo hai cách?

Bài 3 : ( 5,0 điểm) Cho tam giác ABC cân tại A có AB = AC =10cm , BC = 12cm. Vẽ AH vuông góc BC tại H. a) Chứng minh ∆ABH = ∆ACH . b) Tính độ dài AH. c) Từ H vẽ HM  AB( ) M AB � , vẽ HN  AC( ) N AC � . Chứng minh ∆BHM = ∆CHN. d) Từ B vẽ Bx  AB, từ C vẽ Cy  AC chúng cắt nhau tại O. Tam giác OBC là tam giác gì? Vì sao?

suy nghĩ như thế nào về bổn phận của con cái đối với cha mẹ

Viết bài văn biểu cảm về hình ảnh phụ nữ qua bài thơ trên từ đó có suy nghĩ gì về người phụ nữ trong xã hội ngày nay

Do sắp xếp thời gian làm việc khoa học nên anh T bảo vệ luận án Tiến sĩ trước thời hạn và đạt kết quả xuất sắc. Anh T đã thể hiện phẩm chất nào sau đây? A: Chuyên quyền, công khai, minh bạch. B: Làm việc năng suất, chất lượng, hiệu quả. C: Cần, kiệm, liêm, chính. D: Chí công vô tư.

GIÚP MK BÀI 8, 9 VÀ 10 NHA . CHỈ TOÀN VIẾT LẠI CÂU VÀ ĐIỀN TỪ THUI

Giúp mình nêu cảm nghĩ của câu 1 phần luyện tập đc ko ạ .Mik yếu phần nêu cảm nghĩ cực :(

2/ Combine the sentences using: so/ As/ Because/ although/but/ and.. 1/ Nam got wet. He forgot his umbrella. ................................................................................................................................................. 2/ It’s raining . We can’t go to the beach. ................................................................................................................................................. 3/ He was tired. He trie to complete his homework. ................................................................................................................................................. 4/ The camera didn’t work. Mr robinson took it back to the shop. ................................................................................................................................................. 5/ I’d love to play volleyball. I have to complete my homework ……………………………………………………………………………………………..... 6.Mai wants to go home. She feels sick ( because) ……………………………………………………………………………………………… 7.Nga is hungry. She hasn’t eaten all day ( since) ……………………………………………………………………………………………… 8.The rice paddies are polluted ,. The rice plants will die.( If) ……………………………………………………………………………………………… 9.The oil will pollute the sea. People are worried ( using ADJ + that clause) ……………………………………………………………………………………………… 10.We didn’t enjoy our holiday .The weather was bad ( so) ……………………………………………………………………………………………… 11.I often go to school with the boy . He in my neighbor’s son.( who) ……………………………………………………………………………………………… 12.The man is my father .He spoke to you.( who) ……………………………………………………………………………………………… 13. I lost a pen .It is very good( which) ……………………………………………………………………………………………… 14. The car is very expensive. It ‘s just been bought by Mr Pike.( which) ……………………………………………………………………………………………… 15.He is very tired but he has to finish his homework( although) .................................................................................................................................................

cảm nhận của em về nhân vật người anh trong bài bức tranh của em gái tôi

Read the following passage and mark the letter A, B, C, or D to indicate the correct word that best fits each of the numbered blanks. CULTURE SHOCK Many people dream of living in a foreign country. It can be an amazing experience for those (32) ____ are willing to settle down in a new place. (33) ____, there’s one potential problem you should be aware of: culture shock. Culture shock is the feeling we get from living in a place that is so different to where we grew up that we are not sure how to deal with it. Societies are (34) ____ in many different ways. Customs and traditions can be very different and that can sometimes make it difficult to get on with local people who might not approve (35) ____ things you do and might object to things you say. You might be banned from doing things in another country that are perfectly legal in your own. For example, in Singapore people can be forced to (36) ____ a large fine just for dropping rubbish. Eventually, though, most people who live abroad fall in love with their adopted country and learn to accept its differences. 32. A. who B. which C. what D. whose 33. A. Therefore B. However C. Although D. Moreover 34. A. organize B. organizing C. organization D. organized 35. A. of B. with C. on D. off 36. A. spend B. waste C. pay D. borrow Mark the letter A, B, C, or D to indicate the sentence that is closest in meaning to each of the following questions. 37. Nothing is more precious than happiness and health. A. Happiness and health are the most precious things. B. Happiness is more precious than health. C. Health is more precious than happiness. D. Happiness and health are more and more precious. 38. I’ve never seen such a nice bouquet of wedding flowers. A. This bouquet of wedding flowers is the nicest that I’ve ever made. B. This is the nicest bouquet of wedding flowers that I’ve ever seen. C. I ve never seen the nicest bouquet of w edding flowers so far. D. Nothing I’ve seen is nicer than this bouquet of wedding flowers. Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences given. 39. Cultural diversity can be a source of tension. It can also bolster workplace productivity. A. Cultural diversity can be a source of tension, but it can also bolster workplace productivity. B. Cultural diversity can bolster workplace productivity, but it can also be a source of tension. C. Being a source of tension can also make cultural diversity bolster workplace productivity. D. When bolstering workplace productivity, cultural diversity can be a source of tension. 40. Students' needs are diverse. There are various types of schools and training programs to choose from. A. Students' needs are diverse although there are various types of schools and training programs to choose from. B. There are various types of schools and training programs for students of diverse needs to choose from. C. Students' needs are diversifying types of schools and training programs for them to choose from. D. Students' needs are diverse, so there are various types of schools and training programs to choose from.