【单选题】
Female horseflies transmit (a few) diseases, (but) their main (significance)as pests is (in sting) of their bite.
A.a few
B.but
C.significance
D.in sting
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根据网考网移动考试中心的统计,该试题:
0%的考友选择了A选项
32%的考友选择了B选项
1%的考友选择了C选项
67%的考友选择了D选项