Hai dây dẫn thằng dài vô hạn đặt song song trong không khí cách nhau khoảng d=6cm có dòng điện I1=1A; I2=2A đi qua, ngược chiều nhau. Định vị trí những điểm có cảm ứng từ tổng hợp = 0

Giải giúp mình câu d mình xin cảm ơn

1:The __________ minority peoples have their own customs and traditions. A. ethnic B. cultural C. basic D. diverse 2: What is the __________ of the smallest ethnic group? A. ancestor B. group C. majority D. population 3: Ao dai is the __________ dress of Vietnamese people. A. major B. special C. traditional D. ethnic 4:If you go to Da Lat, you should try some __________ of people here A. specialties B. customs C. costumes D. shawls 5: Ethnic people have their own ways __________ farming. A. in B. of C. to D. at 6:People living in __________ Sahara have to fight for their living. A. a B. the C. an D. x 7: The Viet or King has __________ number of people, accounting for about 86% of the population. A. the largest B. large C. larger than D. the larger 8: __________ traditional costume is the most colorful among all people of Vietnam? A. What B. When C. Whose D. Why 9: : __________ ethnic group has the larger population, the Tay or Ede? A. Which B. Where C. Who D. How 10: People __________ mountainous regions have to travel a long way to town. A. on B. at C. in D. of 11: The items on __________ in the Museum of Ethnology are very interesting. A. worship B. display C. diversity D. heritage 12: The __________ house is the biggest house in his village. A. community B. communist C. communal D. communicate 13: We are watching a Holly __________ of the Hmong people A. waterwheel B. diversity C. ceremony D. group 14: Vietnam is a multicultural country. The Vietnamese peoples are __________ but live peacefully. A. diverse B. basic C. boarding D. communal 15: Like other ethnic people, the Ha Nhi __________ their ancestors A. gather B. hunt C. worship D. Recognize 16: Some Vietnamese schools make students wear Ao Dai, the __________ dress of Vietnam. A. tradition B. traditional C. traditions D. traditionally 17: Can you tell me what is the difference __________ custom and tradition? A. in B. of C. among D. between 18: Before beginning the meal, we should __________ for the oldest person to start. A. wait B. to wait C. waiting D. waited 19: You don’t have __________ tips for the waiters in Vietnam. A. leave B. leaving C. to leave D. left 20: My mother taught me some table __________ when I was young. A. manners B. unities C. prongs D. offsprings 21: We reached the house after __________ for almost an hour. A. cycled B. to cycle C. cycling D. cycle 22: Our customs are passed __________ from generations to generations. A. down B. up C. to D. over 23: Some fortune tellers can read your future by looking __________ your palm. A. to B. in C. at D. for 24: I’m so __________ about exploring customs of your country A. excited B. interested C. fond D. keen 25: Although I have never been to the place, it has a __________ of belonging to me. A. prong B. palm C. course D. sense 26: My teacher paid me a __________ because I finished all difficult tasks. A. cutlery B. compliment C. offspring D. manner 27: This filmstrip __________ the daily routines of a typical Vietnamese family. A. reflects B. accepts C. obliges D. sprays 28: He __________ try to be more punctual; or else, the manager will get angry. A. must B. should C. need D. may 29: He came up with the solution __________ every problems. A. in B. at C. for D. to

Reading (5 pts) My uncle, Mr. Tien, is a teacher of English at a Secondary school in Ha Noi. He goes to work every working day. He has two days off a week : Saturday and Sunday. He walks to work. He never goes to work by motorbike because his house is next to his school. The school starts at 7 a: m and finishes at 5 p : m. After work, he usually plays table tennis. He comes back home at 6 :30 p : m, and has dinner with his family. After dinner he prepare his lecture and helps his children do homework. He sometimes watches TV. He often reads book until midnight. He is busy but he feels happy with his job.  Answer the questions : 1. What does Mr. Tien do ? ……………………………………………………………………………………… 2. How many days does he go to work ? ……………………………………………………………………………………… 3. How does he go to work ? ……………………………………………………………………………………… 4. After work, What does he do ? ……………………………………………………………………............................ 5. Does his school end at 4 : 30 ? .……………………………………………………………………………………...

các hợp chất hữu cơ phân hủy được bởi vi sinh vật trong môi trường tự nhiên là chất gì ? giai đoạn đầu của phân hủy là thủy phân, vậy cơ chế thủy phân diễn ra như thế nào, các enzyme nào của vi sinh vật đóng vai trò quyết định trong sự thủy phân này. cho ví dụ.

tìm x biết : a. 12 chia hết cho x và x< 0 b. -8 chia hết cho x và 12 chia hết cho x

Dịch từ "Tiểu Dã Miêu" sang từ Thuần Việt

Giúp mình giải 4 câu cuối ạ xin cảm ơn

Giải giúp mình với đang cần gấp ạk

Một xí nghiệp mỗi ngày may được 350 bộ quần áo. Khi may theo mốt mới, với cùng khổ vải, số vải dùng để máy một bộ quần áo tăng x (cm) và năng xuất không thay đổi. Hỏi mỗi ngày số vải tăng bao nhiêu cen-ti-mét. a) x = 15 ? b) x = -10