Some years ago industries had more
freedom than they have now, and they did not need to be as careful as they must
today. They did not need to worry a lot about the safety of the new products
that they developed. They did not have to pay much attention to the health and
safety of the people who worked for them. Often new products were dangerous for
the people who used them; often conditions in the work place had very bad
effects on the health of the workers. Of course sometimes there were real disasters which attracted the attention of governments and which showed need for changes. Also scientists who were doing research into the health of workers sometimes produced information which governments could not ignore. At such times, there were inquiries into the causes of the disaster or the problems. New safety rules were often intr A. conditions in the work place B. the freedom of industries in the past C. changes in industrial production D. the safety and health of workers and customers [单项选择]Passage Two
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