Tại sao nhóm máu $O$ có $alpha$ và $beta$ mà có thể truyền được cho nhóm máu $AB$ có kháng nguyên $A, B$? Biết $alpha+A->$ kết dính, $beta+ B->$ kết dính

Giúp mình câu 2 với ạ xem mạch điện mà tìm u1 u2u3u4

Ex15 3 . I started work for the company a year ago I've..................... .. . . . . . 4. It started to snow at 5 o'clock It.................. . . . .. . . . . . . . 6. Mr Nam started teaching English at Dai An secondary school 4 year ago Mr Nam has .. .. . . . ...... .................. 1. I begin learning English in 2005 I have...............

tính lực hút mà trái đất tác dụng lên vật có khối lượng 60kg

Giải giúp mình câu c và d nhá mn ơi!! Mình cần lời giải để chuẩn bị kt đó!!

IV. Finish each of the following sentences in such a way that it means exactly the same as the sentence printed before it. 26. You should make an effort to get out and about more. It’s high time ______________________________________________________________________ 27. I’ve forgotten that commentator’s name but he’s very well – known. ​That commentator, ___________________________________________________________________ 28. Let’s invite the Marshalls to a barbecue on Sunday. ​He suggested _______________________________________________________________________ 29. It was overeating that caused his heart attack. ​If _________________________________________________________________________________ 30. A new flu vaccine has been on trial since the beginning of the year. ​They ______________________________________________________________________________ 31. If anyone succeeds in solving the problem, it will probably be him. ​He is the most ______________________________________________________________________ 32. He met Jane, whom he later married, when he was at Cambridge. ​He met Jane, who was _______________________________________________________________ 33. His behavior is beginning to annoy me more and more. ​I am beginning to ___________________________________________________________________ 34. Most of the students ignored what the teacher was saying. ​Few ______________________________________________________________________________ 35. She discovered eight new comets in the course of her work. ​Her work resulted ___________________________________________________________________

Em hãy làm bài thu hoạch về mổ giun đất Mn giúp em với ạ em cảm ơn ạ

giải thích vị trí vai trò của tầng lớp , giai cấp trong xã hội trong cổ đại phương Đông ,phương Tây

25. A 26. B!!! 27. C 28. C 29. A 30 . A Giúp em xem qua đúng chưa với ạ? Tks!

III. Fill in each numbered blank with one suitable word. Dreams Dreams (0) ….. have …… always, fascinated human beings, The idea that dreams provide us with useful information about our lives goes (11) …………….. thousands of years. For the greater (12) ………. of human history (13) ……….. was taken for granted that the sleeping mind was in touch with the supernatural world and dreams were to be interpreted as messages with prophetic or healing functions. In the nineteenth century, (14) ………. was a widespread reaction (15) ………….. this way of thinking and dreams were widely dismissed as being very (16) ………….. more than jumbles of fantasy (17) ……… about by memories of the previous day. It was not (18) ……….. the end of the nineteenth century (19) …………. an Austrian neurologist, Sigmund Freud, pointed out that people who have similar experiences during the day, and who are then subjected (20) ……………the same stimuli when they are asleep, produce different dreams. Freud (21) …………..on to develop a theory of the dream process which (22) ………… enable him to interpret dreams as clues to the conflicts taking place within the personality. It is by no (23) …………….. an exaggeration to say that (24) …………… any other theories have had (25) …………. great an influence on subsequent thought.