• 2021-04-14
    Talk Computer virus.mp3:
    How to Avoid Getting a Computer Virus
    1. (1)__________
    ■Ways of spreading
    ■(2)______sent in emails
    ■USB drive
    ■ Defense
    ■(3)______is the best defense
    2.Worms
    ■What are they?
    ■Worms are scarier(4) _______
    ■ Way of spreading
    ■ Spread to computers(5)_______ humans' efforts
    ■ Defense
    ■Keep your computer software(6)__________
    3.(7)________
    ■What are they?
    ■ Appear to be a(8)_________
    ■ Way of spreading
    ■ (9)______from the Internet
    ■Defense
    ■ Only download softwares from (10)________sites/js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_mp3.gif
  • Bugs
    --- Attachments --- Anti-virus software --- programs --- without --- updated/ up to date --- Trojans --- game/ useful software --- Downloaded --- trusted

    举一反三

    内容

    • 0

      输出九九乘法表。 1*1=1 2*1=2 2*2=4 3*1=3 3*2=6 3*3=9 4*1=4 4*2=8 4*3=12 4*4=16 5*1=5 5*2=10 5*3=15 5*4=20 5*5=25 6*1=6 6*2=12 6*3=18 6*4=24 6*5=30 6*6=36 7*1=7 7*2=14 7*3=21 7*4=28 7*5=35 7*6=42 7*7=49 8*1=8 8*2=16 8*3=24 8*4=32 8*5=40 8*6=48 8*7=56 8*8=64 9*1=9

    • 1

      编写程序,输出下列的数字图形。 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 1 2 3 4 5 6 1 2 3 4 5 1 2 3 4 1 2 3 1 2 1

    • 2

      单元测试3 (7).mp3: 1.여기는 신발가게입니다./js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_mp3.gif

    • 3

      >>>x= [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9]>>>print(x.sort()) 语句运行结果正确的是( )。 A: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] B: [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9] C: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0] D: ['2', '4', '0', '6', '10', '7', '8', '3', '9', '1', '5']

    • 4

      【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=