Tại sao lại cần phải nghiên cứu virut? Mọi người giúp e vs ạ Em cảm ơn❤️

giải giúp tớ với ạ tớ hứa vote 5 sao và ctlhn ạ

Vẽ anime /chibi buồn đi, khóc càng tốt ;-; Đẹp nhé! CTMKQTVH Motminhcobuonkhong?? Đừng để ý cái cap ;-; có hứng đặt thì đặt thoyy!

Tìm lỗi sai và sửa lại (mng giúp mình với ạ) 41 I often (look into) new words (in) the dictionary (whenever) I don't know (their) meaning. 42 Simon (takes part with) many (different) volunteer (programs) (in) his town. 43 (Could) you please look (at) my chilren (when) I'm (away)? 44 She (continued) (writing) after she (had) (supper). 45 (Mr. Thach,.) who (sing) (English songs) very well, (is) my teacher of English. 46 (Mr. Thach), (who sing) English (songs) very well, (is) my teacher of English. 47 Why (are there) a shortage of (available) apartments (for rent) in this city (at present)? 48 (There are) differences (and similarities) between (Vietnamese) and American (culture). 49 Can you (tell me) where (that) apples (over) there (come from)? 50 There are many (variety) of English all over the world (such) as (British) English, American English and (Indian) English. 51 (Eivel thousand pounds (were) stolen (from) (the) bank. 52 She (did not) know where (most of the) people in (the) room (was from). 53 (The) Caspian Sea, (a salt lake), is (the largest) than any other (lakes) in the world. 54 (The) humming-bird (is) one of the (most) smallest birds we (know) of. 55 (The) humming-bird is (one) of the (most) smallest birds we (know) of. 56 Happiness is (a) most important (thing) (in) (my) life. 57 The (better) you (are at) English, (more chance) you have to (get a job) with international organizations. 58 (His) doctor (advised) him (to stop) (to smoke). 59 She (avoided) (to talk) to me because I (tried) (to tell) a lie to her. 60 We (had) decided (going) for (a short walk) in the park (before dinner). 61 My sister enjoys (listening) (to music) and (dance with) her (friends). 62 My sister (enjoys) (read) about (wild animals) and (natural) mysteries. 63 You (have) eat (nutritious) foods to (stay) (healthy). 64 You (must) (steamed) the dish (in) thirty minutes, or else it (is) still raw. 65 I (think) your garden needs (to weed) and you (had better) do it (right now). 66 It is (very) difficult (for) us to (preventing) forest fires (during) the drought. 67 They are going (to have) (to leave) soon and (so do) (we). 68 (At the moment) I am (spending) my weekend (go to) (camping) with myfriends. 69 My brother stopped (to smoke) (because) it was (harmful (for) him. 70 The park (keeper) told us (not walk) on (the grass) or we (would be) fined. 71 (Mr. Smith) is going (to buy) a new (Japanese) car, (doesn't he)? 72 (You) need (your) shoes (to repair), (don't) you? 73 You have (read) this (interesting) article (on) the website, (have you)? 74 We are (making) a car (which) will be (run) (on) Solar energy. 75 Maiused to (going) to school (late) (when) she (was) in primary school. 76 My father used to (giving) me (some good) advise (whenever) I had (a problem). 77 John used to (smoking) cigarettes (when) he (was) a young (man). 78 You can (apply for) a better job (when) you (will have had) (more experience). 79 They were (walking) through Nguyen Hue (Avenue) (while) an accident (happened). 80 Iwish today (is) sunny (so that) I (could spend) the day (in the country). 81 (Nam) (wishes) he (can speak) English (fluently).

Lấy ví dụ về 1 bài toán tình giá trị nhỏ nhất

Mn ơi giúp mk với ạ câu a và câu b có công thức rồi đấy ạ @dưak6 Tui lười quá hộ toy nha

má ơi , ban nãy con gửi bài cho cô quên ko tắt hoidap cô bảo suft trên mạng làm mới đau vẽ anime cay cúa

Moi người giúp vs sao ko ai giúp hốt vậy . Câu hỏi theo stt ạ.

I,Viết lại câu: What books are students reading? What books ...........................................? II. Read the passage and answer the following questions. (1p) About twenty percent(%) of the world’s present energy already comes from the sun in one form or another. Special devices have already been made available to put on the roofs of houses and flats to catch the sun’s rays and thus heat water. Thousands of these devices (thiết bị) are now being used to provide energy in through the United States while more than a million solar water- heating units have already been built in homes in Japan. Other purpose for which solar energy is at present being used include the separation of salt from the sea water, irrigation and sewage disposal. For most people in developing countries, the need is not for air conditioners or central heating but for cheap ways of cooking food, drying crops and lighting homes. 1. How much percent of the energy comes from the sun?  About twenty percent of the world’s present energy comes from the sun. 2. Do special devices put on the roofs of houses to catch solar energy? Yes, these devices do. / Yes, they do. 3. What are now being used to provide energy in the United States? ........................................................................................................................... 4. Have solar water- heating units been built in homes in Japan? ........................................................................................................................... 5. Do you think solar energy should be used in our country? Why? ...........................................................................................................................

1. Nguồn biến dị di truyền của quần thể vật nuôi được tạo ra bằng cách nào? 2. Làm thế nào để tạo ra thể đa bội trong chọn giống?