单项选择题

This text is mainly about ______.

A．the health benefits of afternoon naps
B．the negative effects of sleep deprivation on health and worker productivity
C．the importance of the siesta tradition in Spain and Latin America
D．the siesta tradition and its health benefits

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单项选择题

The author suggests that most Americans feel that ______.

A．Spanish culture is inefficient
B．nap-taking will put their jobs at risk
C．nap-taking is a sign of laziness
D．they get plenty of sleep

单项选择题

We can infer from the second paragraph that Mexican workers now ______.

A．work fewer hours than in the past
B．get home from work much later than in the past
C．work more reasonable hours than in the past
D．finish the workday earlier than in the past