单项选择题Why can many people see silver linings to the economic slowdown
单项选择题The purpose of the author in mentioning the three researches is to ______.
单项选择题Six-Pack Man is probably a video game that can ______.
单项选择题We can safely infer from the article that video games can NOT improve people's ______.
单项选择题The author's general attitude towards video games is that ______.