chữ số7trong số 12379 061 thuộc hàng và lớp nào

MN LÀM CHO MÌNH TỪ CÂU 13 Ạ CẦN GẤP

Giúp mik vs làm hết luôn nha :((

200g dung dịch NaOH 10% có nghĩa là gì ?

Nếu tam giác ABC có trung tuyến AM và G là trọng tâm thì: A. AG = GM B. AM = 2AG C. AG= AM : 3 D. GM = AG: 2

Wind,hydro and solar are_______energy sources A. Modern B. Renewable C. Non-renewable D. Polluting

hộ mk nha đang cần gấp chỉ ghi kết quả da thôi nhá

Giúp mình câu 1 phần Làm Văn Mình cảm ơn ạ

Câu 1: Cho ΔABC vuông tạu A, AB=8cm, AC= 12cm. BM là đường trung tuyến, G là trọng tâm ΔABC. Đường thẳng vuông góc với AC tại C cắt BM tại D. a, Chứng minh ΔABC = ΔDMC ; b, Tính độ dài B,, GM. giúp mik vs ạ vẽ hình và giả thiết-kết luận nữa.

39) Some people grow (A) so taller (B) that (C) their health may (D) become endangered. 40) After said (A) goodbye to (B) my parents, I went (C) to school with (D) my sister. 41) The phone (A) rung (B) while I was washing (C) the dishes (D). 42) Henry’s friends (A) told themselves (B) to put his (C) coat on the rack in their (D) hall. 43) She isn’t (A) old enough (B) to done (C) this job (D). 44) Eight hundred years ago (A) Christmas songs are performed (B) for people in (C) towns and villages (D). 45) Would (A) you mind help (B) me solve these mathematics problems (C) ? I can hardly understand how (D) to do them. 46) She was having dinner (A) when (B) a man was coming and giving (C) her a bunch (D) of flowers. D) Rewrite the following sentences without changing the meaning. (2,5ms) 47) The sister asked: “Are you hungry, Tom?” - The sister __________________________________ 48) A lot of effort has been put in the work by the little girl. - The little girl ______________________________________ 49) How long have you studied medicine? - When ____________________________________ 50) John was too ill to go to school. - John wasn’t __________________________________ 51) Tom is not as tall as Peter. - Peter _______________________________________ Every year students in many countries learn English. Some of these students are young children. Others are teenagers. Many are adults. Some learn at school, others study by themselves. A few learn English just by hearing the language in films, on television, in the office or among their friends. But not many are lucky enough to do that. Most people must work hard to learn another language. Many boys and girls learn English at school because it is one of their subjects. They study their own language, and mathematics… and English. In England, America or Australia, many boys and girls study their own language, which is English and mathematics… and another language, perhaps French or German or Spanish. Many adults learn English, because it is useful for their work. Teenagers often learn English for their higher studies, because some of their books are in English at the college or university. Other people learn English because they want to read newspapers or magazines in English. 62) According to the writer . . . . . . . . . . . . a) only adults learn English. b) no children like to learn English. c) English is useful only for teenagers. d) English is popular in most of the world. 63) Most people learn English by. . . . . . . . . . . . . . . . a) watching videos only. b) hearing the language in the office. c) talking with foreigners. d) working hard on their lessons. 64) Many boys and girls learn English because . . . . . . . . a) English can give them a job. b) it is included in their study courses. c) they are forced to learn it. d) they have to study their own language. 65) In America or Australia many school children study . . . . . . . . . a) English as a foreign language. b) English and mathematics only. c) such foreign languages as French, German and Spainish. d) their own language and no foreign language. 66) Many adults learn English because . . . . . . . . . . a) English is spoken in their office. b) they want to go abroad. c) most of their books are in English. d) it helps them in their work.