Nhân tố sinh thái là gì?Bao gồm những nhóm nào?Phân biệt nhân tố vô sinh,hữu sinh và con người.Tại sao có thể tách riêng nhân tố con người khỏi nhân tố hữu sinh?

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1. Clean teeth are…………….teeth. A. heath B. bad C. well D. healthy 2. Is your decaying tooth very……………? A. scared B. serious C. strange D. nervous 3. It’s …………………to brush your teeth regularly. A. important B. serious C. bad D. not good 4. Minh is about the same………………as his mother now. A. healthy B. weigh C. height D. high 5. The students at our school are having a medical………. A. record B. check in C. check out D. check- up 6. They filled in their medical………… A. check-up B. record C. check in D. room 7. A……………is an instrument for weighing people or things. A. scale B. chart C. drill D. record 8. …………..is a room outside a doctor’s surgery where people wait to see the doctor. A. Classroom B. Doctor’s C. Waiting room D. Living room 9. Follow………….., please. A. me B. mine C. I D. my 10. Minh is in the………... Dr Lai is checking his teeth. A. restroom B. surgery C. waiting room D. classroom III. Choose the correct answer to complete the passage. The students of Quang Trung school are having a (16)……… check-up today. First, they fill (17)……… their medical records and give them to a nurse. After that, the nurse (18)……… their temperature (19),……… their height, and (20) ……… them. 11. A. medicine B. medicinal C. medical D. medicines 12. A. up B. in C. up D. to 13. A. take B. took C. taking D. takes 14. A. measures B. takes C. makes D. weighs 15. A. takes B. weighed C. weighs D. took