【单选题】
Throughout history ........ different representations for numbers and for the basic process of counting.
A.( have been many
B.( them have been many
C.( many
D.( when many
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根据网考网移动考试中心的统计,该试题:
6%的考友选择了A选项
88%的考友选择了B选项
3%的考友选择了C选项
3%的考友选择了D选项