tìm m để pt mx^2 - 2( m+1)x - 3 = 0 a) có 2 nghiệm trái dấu b) có 2 nghiệm phân biệt âm

Hãy đọc số liệu trên biểu đồ hình quạt cho trong hình dưới rồi điền vào chỗ chấm cho đúng : - Số học sinh nhiều nhất đại loại......... Vì chiếm số phần trăm........ - Số học sinh ít nhất đại loại............ Vì chiếm số phần trăm.......

Viết lại câu, điền đúng dạng từ trong ngoặc. 1. My brothers (sleep) on the floor. (often) =>____________ 2. He (stay) up late? (sometimes) => ____________ 3. I (do) the housework with my brother. (always) => ____________ 4. Peter and Mary (come) to class on time. (never) => ____________ 5. Why Johnson (get) good marks? (always) => ____________ 6. You (go) shopping? (usually) => ____________ 7. She (cry). (seldom) => ____________ 8. My father (have) popcorn. (never) => ____________

Câu 15 quá trình nhân lên của virut trong tế bào chủ bao gồm mấy giai đoạn A 3 B 4 C 5 D 6

hãy viết một đoạn văn ( từ 10 đến 15 câu ) kể về một người lao động trí óc mà em biết ( kể cô giáo )

Câu 14 câu có nội dung đúng trong các câu sau đây là A virut gây bệnh ở người có chứa ADN và ARN B virut gây bệnh ở thực vật thường bộ gen chỉ có ARN C thể thực khuẩn không có bộ gen D virut gây bệnh ở vật nuôi không có vỏ capxit

Cho dạng đúng của động từ trong ngoặc If we meet at 9:30, we (have) _________________plenty of time. If you (find) _________________ a skeleton in the cellar, don’t mention it to anyone. The zookeeper would have punished her with a fine if she ( feed) _________________ the animals.. If you pass your examination, we (have) _________________a celebration. Lisa would find the milk if she (look) _________________ for it in the fridge. What (happen) _________________if I press this button? The door will be unlocked if you (press)_________________ the green button. I should have voted for her if I (have) _________________ a vote then. If you go to Paris, where you (stay) _________________? If you (swim) _________________ in this lake, you’ll shiver from cold. If someone offered to buy you one of those rings, which you (choose) _________________? The flight may be cancelled if the fog (get) _________________thick. If the milkman (come) _________________, tell him to leave two pints. I (call) _________________ the office if I were you. Someone (sit) _________________on your glasses if you leave them there. You would hear my explanation if you (not talk) _________________so much. What I (do) _________________if I hear the burglar alarm? If you (read) _________________the instructions carefully, you wouldn’t have answered the wrong question. If Mel (ask) _________________ her teacher, he’d have answered her questions. I would repair the roof myself if I (have) _________________a long ladder. Unless they turn that radio off, I (go) _________________mad. If you were made redundant, what you (do) _________________? We’ll have a long way to walk if we (run) _________________out of petrol here. If you shake that bottle of port, it (not be) _________________ fit to drink. If you spoke louder, your classmates (understand) _________________ you. I’ll probably get lost unless he (come) _________________with me. You (not have) _________________ so many accidents if you drove more slowly. If you (wear) _________________ a false beard, nobody would have recognized you. If she (leave) _________________ the fish here, the cat will eat it. You (have) _________________ no trouble at school if you had done your homework. Unless you (tell) __________________ the truth, I won’t help you. You’ll get pneumonia if you (not change) _________________ your wet clothes. If I had known that you couldn’t eat octopus, I (not buy) _________________ it. If they (hang) _________________ that picture lower, people would be able to see it. She (be) _________________able to walk faster if she didn’t have such high-heel shoes. I (bring) _________________ you some beer if I had known that you were thirsty. If you had touched that electric cable, you (be) _________________ electrocuted. If the story hadn’t been true, the newspaper (not print) _________________ it. I (not buy) _________________ things on the installment system if I were you. Dan (arrive) _________________ safe if he drove slowly.

nêu nguyên tắc và cách chọn phần văn bản

Giải chi tiết giúp mình nhé Mình cảm ơn

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