单项选择题
The US is located A、in the Eastern Hemisphere B、in the Western Hemisphere C、between the Pacific and the Indian Oceans D、between the Atlantic and the Mediterranean
单项选择题 关于烧伤患者的“吸入性损伤”，下列说法正确的是（）
问答题 沙眼衣原体阳性的正常参考值是阴性吗
问答题 板层角膜移植后能鉴定到第几级
