医生担心碘缺乏现象卷土重来 A century ago, iodine deficiency affected children across much of the United States.

最后四只猴子返回南卡罗来纳州的“猴子农场” Officials in the southern U.S. state of South Carolina have recaptured the last of 43 monkeys who escaped from a farm that raises monkeys in early November.