试题与答案

在以前的windows系统中，木马主要是加载在以什么为后缀名的文件中？（） A.ba

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题型：单项选择题

题目：

在以前的windows系统中，木马主要是加载在以什么为后缀名的文件中？（）

A.bat

B.ini

C.txt

D.doc

答案：

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下面是错误答案，用来干扰机器的。

参考答案：B

考点：电子商务师电子商务安全知识电子商务安全知识题库
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      Tracy sat at the kitchen table daydreaming. She was thinking about the used bike she planned to buy.
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(反光镜)
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       Tracy's dad walked into the kitchen. "What are you doing?" he asked.
       "Oh, I'm just thinking about the bike I want to buy", Tracy said. "I had hoped to earn enough on my
paper route the first week to buy it, but I only made fifteen dollars. I hope the bike is still there after I get
paid next week."
        "Well, if you would like to earn the money tomorrow, you can help me," Tracy's dad said.
        "Doing what?" Tracy asked eagerly.
        "I'm washing windows in the morning," her dad said. "I could use five dollars' worth of help."
         Even though it was a Saturday, Tracy got up quite early. She washed the inside of all of the windows.
By twelve o'clock, she finished and had the money in her hand. Just as she was ready to leave, her mom
called to her, "Tracy, did you make your bed?" Tracy rushed to her bedroom and made her bed. Finally, she
headed for the door. She raced down the street to where the bike was for sale. Luckily, It was still there. The
owner noticed Tracy looking at the bike. "Would you like to buy it?" asked the owner.
        "I sure would! I have twenty dollars," Tracy answered, pulling the money out of her pocket. 
         Within minutes Tracy rode away wearing a huge smile. She circled the block several times. She wanted
her friends to see her on her new bike.
1. Tracy was _______ when his father came into the kitchen.
[ ]
A. sleeping in bed
B. making a list
C. buying a bike
D. making bed
2. Tracy washed the windows in order to _______.
[ ]
A. welcome her friends
B. make her mum happy
C. see the street clearly
D. earn some money
3. Tracy felt worried because _______.
[ ]
A. she was afraid the bike was sold
B. she was not good at fixing up her bike
C. she was afraid her mum wouldn't let her out
D. she couldn't get up early enough to buy the bike
4. We can know from the passage that _______.
[ ]
A. Tracy's mother didn't work hard
B. Tracy's father didn't love her
C. Tracy's family was very poor
D. Tracy had a very good father
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