【单选题】
            
When the engine would not start, the mechanic inspected all the parts to find what was at ____________.
A. wrong
B. trouble
C. fault
D. difficulty
        
        
			
            
            
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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
13%的考友选择了B选项
86%的考友选择了C选项
1%的考友选择了D选项