Toaworker,________fromthepointofviewofsocietyisnecessarylaborisfromhisownpointofviewvoluntaryplay.

法西斯的新闻事业属于什么阶段()。

______thenewplancanbecarriedoutwillbediscussedatthemeetingtomorrow.

Sofarscientistshaveonlyacquired________understandingofthephysicalprocessesthatcauseearthquakes.

新闻立法是指()。