Nêu cảm nhận của em về câu cá mùa thu 4 câu cuối 

Tầng may lơ lửng trời xanh ngắt 

Ngõ trúc quanh co khách vắng teo

Tựa gối buông cần lâu chẳng được

cas đâu đớp động dưới chân bèo 

Nêu cảm nhận của em về cầu cá mùa thu 4 câu đầu

Ao thu lạnh lẽo nước trong veo,

Một chiếc thuyền câu bé tẻo teo.

Sóng biếc theo làn hơi gợn tí,

Lá vàng trước gió khẽ đưa vèo.

 Làm giúp em ạ,em đang cần gấp ạ

Trộn lẫn 100ml dung dịch HNO₃ 0,5M với 100ml dung dịch có chứa 5,13 gam Ba(OH)₂

a) Xác định môi trường của dung dịch thu đc sau phản ứng 

 Làm giúp em ạ,em đang cần gấp ạ

Trộn lẫn 100ml dung dịch HNO₃ 0,5M với 100ml dung dịch có chứa 5,13 gam Ba(OH)₂

a) Xác định môi trường của dung dịch thu đc sau phản ứng 

b) Tính nồng độ mol của chất có trong dung dịch thu được

Tìm GTLN và GTNN của hàm số 

y=\(\sqrt{2+cosx}-1\)

6. It's a pity that you didn't tell us about this. A. I wish you told us about this. B. I wish you had told us about this. C. I wish you would tell us about this. D. I wish you have told us about this. 7. He's getting them to mend the windows. A. He's having the windows to mend. B. He's having to mend the windows. C. He's having to be mended the windows. D. He's having the windows mended. 8. It started to rain at 2 o'clock and it is still raining. A. It has been raining at 2 o'clock. B. It has been raining since 2 o'clock. C. It has been raining for 2 o'clock. D. It has been raining in 2 o'clock. 9. They made her hand over her passport. A. She was made to hand over her passport. B. She was made hand over her passport. C. She was handed over to make her passport.D. She was handed over for her passport to make. 10. I tried to eat the cake, but it was too sweet. A. It was such a sweet cake that I couldn't eat it. B. It was so sweet cake that I couldn't eat it. C. The cake was too sweet that I couldn't eat it. D. The cake was very sweet that I couldn't eat it. 11. My brother and I went to that school. A. I went to that school and my brother, too. B. I went to that school and so my brother did. C. I went to that school and so did my brother. D. I went to that school and so my brother did, too. 12. She said to us: "Don't be late again." A. She said to us not to be late again. B. She told us to be not late again. C. She told to us not to be late again. D. She told us not to be late again. 13. I often get up early in the morning. A. I am used to getting up early in the morning. B. I am used to get up early in the morning. C. I used to get up early in the morning. D. I used to getting up early in the morning. 14. Getting a good job doesn't interest him. A. He isn't good at getting an interesting job. B. He isn't interested in getting a good job. C. He is only interested in getting a good job. D. Even a good job isn't suitable to him. 15. The garden is too small to play football in. A. The garden is so small not to play football in. B. The garden is small enough to play football in. C. The garden isn't big enough to play football in. D. The garden is such small that they can't play football in.