【正确答案】Eighty percent of China's net users frequently or occasionally visit e-business websites. Less expensive merchandises, such as books, audio and video products, flowers and other gifts and ticket services now lead China's online consumption. The most frequently used Internet service is e-mail. On average, each subscriber owns 2 to 3 e-mail accounts. Moreover, listening to music and watching movies online are becoming more popular. Aside from Internet viruses, Internet surfers said they are most annoyed by pop-up ads and net attacks.