Cho tam giác ABC vuông tại A, AB=6cm, tan B=5/12. Hãy tính độ dài đường cao AH và trung điểm tuyến BM của tam giác ABC

Có thể dùng câu lệnh while do để viết chương trình ''Tìm số n để tổng S=1+2+3....+n nhỏ nhất lớn hơn 0. In ra giá trị n và S=?

Nung 50g canxi cacbonat CaCO3 ở nhiệt độ cao thu được CaO và CO2 a. Lập PTHH b. Tính khối lượng CaO thực tế thu được,biết hiệu suất là 90%

Choose the correct answer – A, B C or D – to complete the passage.

      To many people, their friends are the most important in their life. Really good friends always (31)………. joys and sorrows with you and never turn their backs on you. Your best friend may be someone you have known all your life or someone you have grown (32)………………with.

      There are all sorts of things that can (33)……………about this special relationship. It may be the result of enjoying the same activities and sharing experiences. Most of us have met someone that we have immediately felt relaxed with as if we had known them for ages. However, it really takes you years to get to know someone well (34)…………to consider your best friend.

      To the majority of us, this is someone we trust completely and (35)………….. understands us better than anyone else. It’s the person you can tell him or her your most intimate secrets.

Question 35:

A. which

B. whom

C. who

D. Whose