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thanhnga14041980
2 năm trước
Bài 1: Nguyên tử X có tổng số hạt là 60. Trong đó số hạt nơtron bằng số proton. Tìm nguyên tử khối. Bài 2: Tổng số hạt trong các nguyên tử là 16. Hãy xác định nguyên tố đó và viết kí hiệu của các nguyên tố. Bài 3: Tổng số hạt trong nguyên tử là 60. Biết số proton bằng số notron. Tìm số hiệu nguyên tử , số khối
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mọi người giải giúp em vs ạ VIII. Read the passage carefully, then choose the correct answers. The latest addiction to trap thousands of people is the Internet, which has been blamed for broken relationships, job losses, financial ruin, and even suicide. Psychologists now recognize Internet Addiction Syndrome (IAS) as a new illness that could cause serious problems and ruin many lives. IAS is similar to other problems like gambling, smoking and drinking: addicts have dreams about the Internet; they need to use it first thing in the morning; they lie to their parents and partners about how much time they spent online; they wish they could cut down, but are unable to do so. A recent study found that many users spend up to 40 hours a week on the Internet. Some of the addicts are teenagers who are already hooked on computer games and who find it very difficult to resist the games on the Internet. 1. What is the best title of the passage? a. The advantage of the Internet b. Hooked on the Net c. Impact of Internet on teens d. A guide to the Internet 2. According to the writer, internet addiction __________. a. is not the same as gambling b. is not an illness c. can lead to financial problems d. helps people kill time 3. Internet addicts find it hard ___________. a. to use the Internet in the morning b. to lie about the time they spent online c. to spend more time on the Internet d. to spend less time on the Internet 4. The word ‘it’ in paragraph 2 refers to ___________. a. the Internet b. IAS c. dream d. computer 5. Which of the followings is NOT true? a.IAS is recognised as a new illness. b.Internet addiction can cause suicide behaviours. c.Many internet addicts spend more than 40 hours a week online. d.Teenagers who are hooked on computer games can suffer from IAS I

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