专升本考试

【单选题】It can be inferred from the passage that in the past ______. ()
A．workers often got iii because of the poor working conditions
B．companies were free to put out any products they wanted to
C．many people were killed by the dangerous products
D．industries were not as careful in management as they are today
网考网参考答案：D
网考网解析：
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