网络市场调研具有快速、低成本、多媒体等优点，也有样本代表性差、问卷反馈不确定等缺点。

Internet marketing have advantages such as quick response, lower cost, multimedia method and so on.

youdao

网络市场调研具有快速、低成本、多媒体等优点，也有样本代表性差、问卷反馈不确定等缺点。

Internet marketing have advantages such as quick response, lower cost, multimedia method and so on.

youdao