Hòa tan 15 gam muối vào 50 gam nước. Tình nồng độ phần trăm của dung dịch thu được
I. Em hãy khoanh tròn một từ không cùng loại với những từ còn lại. 1. A. student B. teacher C. cooker D. doctor 2. A. America B. Viet Nam C. England D. Singaporean 3. A. red B. blue C. yellow D. sad 4. A. cat B. elephant C. dog D. fish 5. A. he B. your C. her D. his
Bµi 1. Thùc hiÖn phÐp tÝnh: a) (5x - 2y)(x2 - xy + 1); b) (x - 1)(x + 1)(x + 2); c) x2y2(2x + y)(2x - y); d) ( x - 1) (2x - 3); e) (x - 7)(x - 5); f) (x - )(x + )(4x - 1); g) (x + 2)(1 + x - x2 + x3 - x4) - (1 - x)(1 + x +x2 + x3 + x4); h) (2b2 - 2 - 5b + 6b3)(3 + 3b2 - b); i) (4a - 4a4 + 2a7)(6a2 - 12 - 3a3); chỉ cần đáp án thôi
Các bạn làm nhanh giúp mình nhé ạ, mình xin cảm ơn ạ
làm ơn giúp mình với mình cần gấp:(((
25. The Temple of Literature is one of the historic and_____ sites in Vietnam. A. cultural B. culture C. old D. new 26. It’s a great idea to take some medicines______ you have a fever now. A. so B. because C. but D. and 27. There is a pond_______ the garden and the house. A. in B. among C. between D. on 28. Bach Ma National Park close to the sea. A. locates B. located C. is located D. is being located 29. You’d better_____ an umbrella because it is going to rain. A. to take B. taking C. take D. took 30. Oxford University the oldest university in the English speaking world. A. is considered being B. is regarded C. considered to be D. is regarded as 31. Many kinds of fruits and vegetables at the floating market in Can Tho. A. sell B. are sold C. are selling D. will sell 32. Many precious relics in the Temple of Literature. A. keep B. is kept C. kept D. are kept 33. In 2010, the 82 Doctors’ stone tablets as a Memory of the World. A. recognised B. are recognised C. recognising D. were recognised 34. The first Doctors’ stone tablets in 1484. A. were erected B. was erected C. are erected D. erected 35.The Temple of Literature by old trees and many interesting things A. surrounds - contains B. is surrounded - is contained C. is surrounded — contains D. surrounds - is contained 36. Thien Quang Tinh (Well of Heavenly Clarity) is________ in the third courtyard in the Temple of Literature. A. considered B. visited C. put D. located 37. Hue Imperial City was________ as a world cultural heritage by UNESCO in 1993. A. recognised B. developed C. rebuilt D. supported 38. Khue Van Pavilion is________ as one of the traditional symbols in Ha Noi. A. erected B. entered C. regarded D. prepared 39. Those talented students were________ for this university from the entrance exams. A. founded B. consisted C. selected D. booked 40. Many young men were ________for the dedication to the country in the Imperial Academy. A. renamed B. educated C. ranked D. grown 41. Many famous scholars in Viet Nam's history were graduated _______the Imperial Academy. A. in B. to C. at D. from 42. The old pagoda in this town was____ last month, but its architecture wasn't changed. A. reconstructed B. worked C. surrounded D. situated 43. Chu Van An had a remarkable________ in teaching. A. erection B. construction C. career D. preparation 44. I________ to sing first in the contest. A. am chose B. am chosen C. were chosen D. choose 45. Hoan Kiem Lake_______ in Ha Noi. It is one of the most famous lakes in Viet Nam. A. was situated B. were situated C. is situated D. are situated 46. Their organisation________ to support the preservation of historical places in this town last year. A. is founded B. are founded C. was founded D. were founded 47. Her presents________ in her mother's trip in Ha Noi last week. A. were bought B. are bought C. buy D. was bought 48. Some precious relics under Emperor Ly Thanh Tong________ in the Temple of Literature. A. are displaying B. was displayed C. is displayed D. are displayed 49. Some old buildings________ in this town because the weather is so bad now. A. weren't rebuilt B. aren't rebuilt C. were rebuilt D. are rebuilt 50. Her pictures of this trip ________ to her yesterday because her friend's computer was broken. A. wasn't sent B. weren't sent C. didn't send D. aren't sent
Would you rather I ( stay )....at your place next week? I’d rather you ( not make )....that comment last night.You hurt me
Giúp mình bài 19 vs ạ,mik cảm ơn
cho pt x ²-(m+3)x -2m ² +3m =0 hãy tìm giá trị của m đề x=3 là nghiệm của phương trình và xác định nghiệm còn lại của phương trình đó bằng hệ thức viet
Vẽ anime/ mầm/..... NL : kím husband :>>>> Hóng ~~~~~
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