【单选题】
Dogs have been the subject of countless experiments because they are similar to human beings in ______.
A.habit
B.structure
C.temperament
D.appearance
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根据网考网移动考试中心的统计,该试题:
2%的考友选择了A选项
78%的考友选择了B选项
2%的考友选择了C选项
18%的考友选择了D选项