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【单选题】

Our company ______ Metro Messenger Service since 1998.
A.(A) use

B.(B) used
C.(C) had used
D.(D) has been using
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根据网考网移动考试中心的统计,该试题:

5%的考友选择了A选项

26%的考友选择了B选项

2%的考友选择了C选项

67%的考友选择了D选项

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