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【单选题】

Only five years ago, there ______a shortage of computer specialists.
A．(A) was

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

58%的考友选择了A选项

13%的考友选择了B选项

2%的考友选择了C选项

27%的考友选择了D选项

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