单项选择题
Passage One Questions 26 to 28 are based on the passage you have just heard.
A. The degree they disrupt the computer. B. The way they reproduce and spread. C. The space they occupy on the Internet. D. The target they mainly attack.
A. society B. public C. coverage D. audience
A. show the urgent need of daily necessities B. reveal their impact on people’ habits C. indicate their effect on people’ buying power D. manifest the significant role of good habits