【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:
31%的考友选择了A选项
1%的考友选择了B选项
53%的考友选择了C选项
15%的考友选择了D选项