单项选择题


You will hear 3 conversations or talks and you must answer the questions by choosing A, B, C or D. You will hear the recording ONLY ONCE.
Questions 11~13 are based on the following talk.
Which of the following statements is NOT TRUE

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