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【单选题】

The (earliest successful) sewing (machines) were powered by (turn) a (hand crank).
A．earliest successful

B．machines
C．turn
D．hand crank
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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

67%的考友选择了C选项

1%的考友选择了D选项

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