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1)(x-2)(x-x mũ 2+4) .2)(x mũ 2-1).(x mũ 2 +2x).3)(2x-1)(3x+2)(3-x).4)(x+3)(x mũ 2+3x-5) Giúp mình bài này với cảm ơn nhìu
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2. Nhận biết các dung dịch: b) Cách tiến hành: STT 3; Tên thí nghiệm:Nhận biết các dd không nhãn: H2SO4, HCl,Na2SO4; Cách tiến hành; Nêu hiện tượng; Nhận xét -PTHH .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

II. Adjectives or Adverbs ? 1. He answered the phone __________ . A sudden B suddenly 2. There is a lot of __________ interference on the line. A noisy B noisily 3. Thank you for returning my call so __________ . A quick B quickly 4. I am calling because the changes seem very __________ . A importantly B important 5. Sorry, but I can't write that __________ . A fast B fastly 6. She sounded very _________ on the phone. A angrily B angry 7. The boy skipped ________ down the road to school. A happy B happily 8. It was ______ packaged and wrapped in pretty, recycled paper. A nicely B nice 9. All goes ________, and after sometimes he feels relaxed enough to go for a walk. A good B well 10. Andy doesn't often work ______. A hardly B hard 11. She planned their trip to Greece very _______. A carefully B careful 12. She speaks very ______. A quietly B quiet 13. Turn the stereo down. It's too _____. A loudly B loud 14. Children should be cared for by a _____ family. A normally B normal 15. Jane is _____ because her job is _____. A bored - bored B boring - boring C boring - bored D bored - boring 16. Mai has lived in London for five years so she speaks _____. A perfect English B English perfectly C English perfect D English more perfect 17. We didn't go out because it was raining ______. A heavy B heavily C heavier D heavilier 18. The driver of the car was _____ in the accident. A serious injured B seriously injured C serious injuredly 19. I don't like this coffee because it tastes very _______. A strength B strong C strongly D strengthly

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