user-avatar
nhannhi
2 năm trước
Cỏ dại thường mọc lẫn với lúa trên cánh đồng làm cho năng suất lúa bị giảm đi, giữa cỏ dại và lúa có mối quan hệ theo kiểu nào dưới đây: A. Cộng sinh. B. Hội sinh. C. Kí sinh. D. Cạnh tranh
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

I. Give the correct of the verbs in the brackkets to omplete the sentences. 1. I (not see).....my close friend since 2013. 2. Where.......you (go).......last summer holiday? 3. My grandfather (play)......golf every Sunday. 4. This is the most delicious cake I (try)......in my life. 5. My father (go)......on business two day ago. 6. My brother (leave).......home for 10 years. 7. Daniel (earn).............some money last week. I'm afraid he (spend)...............it already. 8. Mr.Quang (teach)................Maths in this schoolsince he (graduate).............in 1985. 9. I (do)..............all the housework. The flat is really clean now. 10. Peter (never see)................a zebra before. 11. They (travel)................around the world once. 12. When I (leave)..............Home last night, I (be)............very tired. 13 ...............your teacher (teach).........English well? 14 ................You (have)...............breakfast this morning ?-Yes, I have. I (eat)..............bread and eggs. 15. She (eat)...............this kind of pizza twice. 16. The teacher (tell).............this story three times. 17 He (write)............a novel for two years. 18. Mai (buy).............a new dress last week. 19. I (never meet)................this girl before.

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