单项选择题

To study the distribution of disease within an area, it is useful to plot the cases on a map.

A．mark
B．allocate
C．erase
D．pose
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单项选择题
There must be a systematic approach toretrievingnotes and analyzing them.
A．regaining
B．relieving
C．reversing
D．rectifying
单项选择题
Family and cultural beliefs andnormsare important predictors of health-seeking behavior.
A．formulations
B．standards
C．principles
D．notions
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