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【单选题】

The ship's generator broke down, and the pumps had to be operated ______ instead of mechanically.
A．artificially

B．automatically
C．manually
D．synthetically
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根据网考网移动考试中心的统计，该试题：

8%的考友选择了A选项

13%的考友选择了B选项

78%的考友选择了C选项

1%的考友选择了D选项

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