单项选择题

If a person finds getting up early a problem, most probably ______.

A．he is a lazy person
B．he refuses to follow his own energy cycle
C．he is not sure when his energy is low
D．he is at his peak in the afternoon or evening

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热门试题

单项选择题

If one wants to work more efficiently at his low point in the morning, he should ______.

A．change his energy cycle
B．overcome his laziness
C．get up earlier than usual
D．go to bed earlier

单项选择题

Which of the following statements is not true

A．Getting off to work with a minimum effort helps save one's energy.
B．Dr. Kleitman explains why people reach their peaks at different hour of day.
C．Habit helps one adapt to his own energy cycle.
D．Children have energy cycles, too.