hòa tan 20,4g Al2O3 vào dung dịch chứa 17,64g H2SO4.tính khối lượng Al2(SO4)3

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IX Choose the best answer A, B, C or D. 1. Eating too much …………………. will be harmful for your health. A. vegetables B. junk food C. healthy food D. fresh food 2. Do you think that playing outside all day will make you get ………………….? A. a sore throat B. a toothache C. sun burn D. a cold 3. You should be careful with …………………. you eat and drink. A. what B. who C. why D. when 4. If you eat that strange food, you may get a/an …………………. A. backache B. allergy C. fever D. temperature 5. If you follow a balanced diet, you will have a healthy …………………. . A. life B. style C. house D. line 6. Eating …………………. drinking healthy things will keep you fit. A. or B. although C. but D. and 7. He will take part in an event. In this event, he will run, jump…………………. swim. A. and B. but C. though D. or 8. Don‟t drink too much milk,………………. you will gain your weight. A. so B. or C. and D. but 9. The doctor advised him to play more sports and …………………. computer games. A. more B. little C. less D. least 10. Your eyes will feel dry if you watch TV …………………. read comic books a lot. A. and B. but C. though D. so 11. To …………………. healthy, you need between 1,600 and 2,500 calories. A. let B. stay C. make D. do 12. I ate too much seafood, so I had a/an …………………. yesterday. A. earache B. backache C. stomachache D. headache 13. We shouldn‟t spend much time …………………. TV and ……………… games. A. watching/play B. to watch/ to play C. watching/ playing D. to watch/ playing 14. My brother eats a lot of junk food, so he …………………. on a lot of weight. A. turns B. takes C. brings D. puts 15. Eat more vegetable …………………. drink less beer and coffee. A. or B. and B. but D. so Hứa vote+camon+ctlhn, online từ giờ cho đến khi có câu trl, làm đúng, cẩn thận, từ từ^^