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

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热门试题

单项选择题

Which of the following may lead to family quarrels according to the passage（）

A．Nawareness of energy cycles.
B．Familiar monologues.
C．A change in a family member's energy cycle.
D．Attempts to control the energy cycle of other family members.

单项选择题

According to the author, in which decade of the nineteenth century did a steamship first attempt to compete with the transatlantic packets（）

A．The twenties.
B．The thirties.
C．The forties.
D．The fifties.