[简答题]

61)Fathers exposed to poisonous substances are probably just as likely to be the cause of defects in their unborn infants as mothers. Yet it is women who are told to stop drinking and smoking and to look after their health when they are pregnant. And it is women who find that they are banned from jobs where they are exposed to harmful chemicals or radiation. 62) Despite a growing body of scientific evidence that a man’s exposure to damaging substances can affect his offspring, pregnant women are still charged with the responsibility of keeping their infants healthy, said Gladys Friedler, of the Boston University School of Medicine. "This is puzzling", she said. "Most of the workforce is still male, so why do we still spend so much time looking at women The health of men as well as women should be of concern."
In the US, 2,500,000 children are born with birth defects each year. In 60 percent of cases the origin of the defect is not

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