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Thecoalbosstooktheriskofmakingmoneythesafetyofhisworkers.[]A.inneedofB.insteadofC.incaseofD.regardlessof

题目详情
The coal boss took the risk of making money ________ the safety of his workers.
[     ]
A. in need of      
B. instead of  
C. in case of      
D. regardless of
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答案和解析
D