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

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

选项 A、mark
B、allocate
C、erase
D、pose

答案B

解析 句意:要研究地区内疾病的分布情况,根据案例将地图进行划分是很有用的。plot划分;策划。allocate分派;分配。mark做标记于;打分数。pose摆好姿势;形成。
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