Cho các SND x,y > 1 sao cho $9x^{2}y^2$ + 7x -7y là SCP

I (learn)............ English for 7 years

....................................................

giúp ahhhhhhhhhhhhhhhhhhhhhhhhhhhh

1. Vaccine được tạo ra từ đâu? 2. Để đạt hiệu quả phòng bệnh cao, thời điểm tiêm vaccine hợp lí nhất là khi nào?

Mọi người giải gấp dùm em với ạ. Em cảm on.

Ông nelson madela từng nói:giáo dục là vũ khí mạnh nhất mà con người có thể sử dụng để thay Đổi Cả Thế Giới Viết Một Bài Nghị Luận Trình Bày Ý Kiến Đó(Cấm Cop Mạng=Báo Cáo+Span) Hay Đúng Rõ Ràng Chi Tiết 5*Và Ctlhn

6.Do something. Don t tell me there is no.......solution to the problem.(practice) 7.They will not let you enter the plane without a.......pass.(board) 8.I have a.......of soap operas.I never watch them.(hate)

39. My team performed better than Mai’s team.  Mai’s team performed ……………………………………….. 40. What is the price of these clothes?  How much …………………………………………………… 41. I adore listening to pop music every day.  I enjoy ………………………………………………………. 42. Tea is cheaper than milk.  Milk ………………………………………………………… 43. Hoa speaks English better than Mai  Mai speaks …………………………………………………. 44. My younger sister really loves to hang out with friends.  my younger sister really enjoys …………………………… 45. Motorbikes go more slowly than cars.  Cars go …………………………………………………….. 46. Collecting flowers is very interesting  it is ………………………………………………………… 47. Tom finds reading poems boring.  Tom dislikes ……………………………………………… 48. It is not a good idea to spend too much time on computer games.  it’s better to avoid ……………………………………….. 49. Hung cannot swim as well as Nam  Nam can swim ………………………………………….. 50. My wife really loves to hang out with friends.  my wife really enjoys …………………………………… 51. Playing this game is very boring.  it is ……………………………………………………… 52. Hoa usues all her free time to look after her family.  Hoa spends …………………………………………….. 53. This subject is more difficuly than that one.  that subject isn’t ……………………………………….. 54. She loves playing volletball.  she fancies …………………………………………….. 55. The white shirt is more expensive than the blue one.  the blue shirt is ………………………………………… 56. No one in my class is more intelligent than nam  Nam is the ……………………………………………. 57. She speaks English well.  he is a ……………………………………….. giúp tui vớis

nhanh nêu số proton kí hiệu hóa học và khối lượng mol