user-avatar
khanhlinh.ndyb
2 năm trước
Tại sao sự biểu hiện của đột biến gen thường có hại, nhưng trong chọn giống người ta vẫn sử dụng phương pháp gây đột biến gen bằng các tác nhân vật lý, hóa học?
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

6. Put the verds in brackets: present simple, present continuous, past simple, future simple or near future. 1. The teacher always (point) . . . . . . . . . . . . . at the blackboard when he (want) . . . . . . . . . . . . . to explain something. 2. Where (you/ go) . . . . . . . . . . . . .? - To the supermaket. I (have) . . . . . . . . . . . . . a picnic this Saturday. 3. Listen! Someone (knock) . . . . . . . . . . . . . at the door. I (go) . . . . . . . . . . . . . and (see) . . . . . . . . . . . . . who it is. 4. (you/ have) . . . . . . . . . . . . . any plans for tonight? Yes. I (catch) . . . . . . . . . . . . . a movie with my new friend Linda. (you/ want) . . . . . . . . . . . . . to join us? 5. Miranda usually (go) . . . . . . . . . . . . . to work by motorbike. But today she (go) . . . . . . . . . . . . . to work by bus as her motorbike has broken down. 6. I (pack) . . . . . . . . . . . . . for my business trip tomorrow. And I (come) . . . . . . . . . . . . back in a week. 7. (you/ usually/ climb) . . . . . . . . . . . . . the tree when you (be) . . . . . . . . . . . . . small? 8. The sun (rise) . . . . . . . . . . . . . in the East and (set) . . . . . . . . . . . . . in the West. Look, it (rise) . . . . . . . . . . . . . . 9. Mrs. Lien (be) . . . . . . . . . . . . . a gardener. Look! She (plant) . . . . . . . . . . . . . some more flowers in her garden. 10. Where (be/ Jim) . . . . . . . . . . . . .? In the bedroom. Last night he (drink) . . . . . . . . . . . . . some wine and (go) . . . . . . . . . . . . . home quite late, so now he (still/ sleep) . . . . . . . . . . . . . . Cần gấp! Thanks!

Put the verds in the brackets: future simple, near future or present continuous. 1. Danny (write) . . . . . . . . . . . . . a postcard at the moment. 2. I completely forget about this. Give me a moment, I (do) . . . . . . . . . . . . . it now. 3. I promise I (be) . . . . . . . . . . . . . there at four o’clock this afternoon. 4. She has not changed her clothes yet. I guess she (not/ take) . . . . . . . . . . . . . part in the party tonight. 5. What (the teacher and her student/ do) . . . . . . . . . . . . . in the class room now? 6. I have bought two tickets. My wife and I (see) . . . . . . . . . . . . . a movie tonight. 7. Tonight my sister and I (stay) . . . . . . . . . . . . . at home. We have rented a video. 8. Bob and his brother (always/ play) . . . . . . . . . . . . . music at midnight. I hate that. 9. Don’t eat all those cakes or you (get) . . . . . . . . . . . . . sick. 10. I (move) . . . . . . . . . . . . . from my house tomorrow. I have packed everything.

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team