có cấu hình electron 1s22s22p63s23p63d64s2 cấu hình này là cấu hình e của nguyên tử hay ion tại sao?

Trong câu sau từ nào hay công thức gì gợi ý cho ta đáp án My home village has had ..... since 1990 (electric)

(X+1^5)=102 Mình cần gấp mong cac ban giup mình Xin cảm ơn ạ !!!!!!

HIV/AIDS đây được coi là căn bệnh của thế kỷ . Vậy em có hiểu biết gì về căn bệnh thế kỷ này ? Các con đường lây lan chủ yếu ?

Biết x-y=12 ; x.y=6 tính (x+y)^2

I. Choose the word whose underlined part is pronounced differently from that of the others in each group. 1. A. flat B. hat C. casual D. equal 2. A. question B. location C. nation D. animation 3. A. design B. side C. picnic D. advice 4. A. gum B. hunt C. tunnel D. tunic 5. A. learned B. dressed C. guided D. wanted II. Choose the word whose main stressed syllable is placed differently from that of the others in each group. 6. A. hotel B. swallow C. improve D. survive 7. A. eventual B. devastate C. admirable D. different 8. A. brother B. machine C. mother D. beauty 9. A. decorate B. family C. festival D. tradition 10. A. blanket B. invite C. replace D. exchange III. Choose the best answer to complete each of the following sentences. 11. She ______ working with children. A. would like B. adores C. would love D. wants 12. Speech is the fastest method of ______ between people. A. communicate B. communicates C. communicated D. communication 13. Do you mind ______? I’m feeling pretty tired. A. driving B. drives C. drove D. driven 14. I had a really ______ dream last night. A. important B. fantastic C. weird D. light 15. The technology has enabled development of an online ______ library. A. virtual B. real C. funny D. fast 16. I like ______ up as soon as I finish eating. A. wash B. to wash C. washes D. washed 17. I’m trying ______ Chinese though it’s very difficult. A. learn B. learning C. learnt D. to learn 18. We should stop ______ because it is harmful to our health. A. smoke B. smokes C. smoking D. to smoke 19. John isn’t here. Try ______ his home number. A. phoning B. to phone C. phones D. phoned 20. Did you remember ______ that letter for me? A. post B. to post C. posting D. posted

sử dụng các mạo từ để điền vào chỗ trống he ...be French judging by his accent you .... speak during an exam she's been awake for 24 hours,she ...tired you...be right but I'm going back to check Lucy ...go out yet she hasn't finished her dinner with luck ,tomorrow,....be sunny My phone won't turn on,it ...be broken the exam ...be easy ,you never know ...you buy me a chocolate bar? I..go to the party tomorrow but I'm not sure yet she knows she ..... be at the bus stop before 5 o'clock I see some clouds, it ...rain later we...fail but we have try

Nhờ mn giải giúp e với ạ, e xin cám ơn

9. She walks__________ than other people. A. slower B. slowlier C. more slowier 10.The blue skirt suits you_______ than the black one. A. better B. more better C. more well

Bản chất của Nhà nước ta là Nhà nước ? A.Của nhân dân B.Của dân, do dân, vì dân C.Quân chủ D.CHXHCN Việt Nam