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  3. In the past industries had more freedom than they have now, and they did not need to be as careful as they must today. They did

In the past industries had more freedom than they have now, and they did not need to be as careful as they must today. They did

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问题    In the past 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 teal 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 introduced as a result of these inquires; however, the new rules came too late to protect the people who had died Or become seriously ill.
    Today many governments have special departments which protect customers and workers. In the U.S., for example, there is a department which tests new airplanes and gives warnings about possible problems. It also makes the rules that aircraft producers must follow. Another department controls the foods and drugs that companies sell. A third department looks at the places where people work, and then reports any companies that are breaking laws which protect the health and safety of workers.
It is implied in Paragraph 2 that years ago governments______.
选项 A、paid much attention to the results of scientific discoveries
B、seldom introduced safety laws before disasters occurred
C、hardly ever looked into the causes of tragedies
D、imposed safety rules as soon as disasters occurred
答案B
解析 从本段最后两句话可知，过去政府在灾难发生后会对灾难的起因进行调查，并制定新的安全法则，但为时已晚。故选[B]。[C]“几乎从不调查悲剧的起因”，和[D]“灾难一发生就加强安全法则”与上述内容不符。[A]“非常注意科学发现的结果”，根本没提到安全生产，不可能是答案。
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