By referring to those encouraging parasitism, the author intends to show that the current welfare policy is ______.

单项选择题What is indicated as a possible future development in television

单项选择题What invention incorporated the principles of light and radio radiation

单项选择题Which of the following seems to be NOT true of smokeless tobacco

单项选择题What is one trend attributed to technological innovation in media communication

单项选择题According to this lecture, what areas of human sensation have not yet been accounted for in media communication