Which of the following is true about the Internet according to the passage?

正确答案： C

解析：
录音中最后一句提到“Internet users are more likely than non-users to receive help from network members.”(网络用户比非网络用户更有可能获得来自网络成员的帮助)，由此可知如果你使用网络，你更有可能得到网络成员的帮助，所以选C。
【录音原文】
　　As the size of a person’s social network increases, it becomes more difficult for people to contact a large percentage of network members. The percentage of one’s social network contacted declines as network size grows. This pattern holds true for almost all forms of contact analyzed in the Social Ties survey. The one exception is email.
　　As the size of people’s social network increases, the percentage of one’s social network contacted weekly by email does not decline, but remains about the same at about 20% of their ties. Several qualities of email help explain this finding. Email enables people to maintain more relationships easily because it is convenient as a communication tool and it gives the control in managing communication. The nature of email is such that people could carry on conversations at different times and at their leisure. This makes it possible for a quick note to an associate, whether it is about important news or seeking advice on an important decision. Moreover, it is almost as easy to email a message to many people as it is to email to only one...
　　Contrary to fears that email would reduce other forms of contact, there is “media multiplexity”: that is, the more contact by email, the more in-person and phone contact. Therefore, Americans are probably more in contact with members of their communities and social networks than before the advent of the Internet. And Internet users are more likely than non-users to receive help from network members.