单项选择题

A person"s calorie requirements vary ______ his life.

A．across
B．throughout
C．over
D．within
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单项选择题
It was in the name of freedom ______ Kennedy led his country deeper into its cruel, hopeless war in Vietnam.
A．when
B．as
C．while
D．that
单项选择题
Beer is the most popular drink among male drinkers, ______ overall consumption is significantly higher than that of women.
A．whose
B．which
C．that
D．what
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