What do we learn about the Russians regarding sleep? AThey don’t fall

What do we learn about the Russians regarding sleep?

They don’t fall asleep until very late.

They don’t sleep much on weekends.

They get less sleep on public holidays.

They sleep longer than people elsewhere.

答案及解析：本题考查细节理解。由题干的大写名词Russian定位到第二段和第三段。第二段的“Russian, for example, began to wake up about a half-hour later each day”这一句是干扰句，起得晚不一定睡得早，所以答案推不出“他们比其他地方的人睡得更久”。然后看到第三段“Russia’s other late nights and early mornings generally coincided with public holidays”，所以答案为C综上，C选项正确。 故正确答案为C项。