钱江晚报·小时新闻 记者 吴朝香 通讯员 陈晓华“最近一周，我这里已经遇到四五位突发心梗的病人。”浙江省人民医院心内科副主任丁亚辉主任医师说，这段时间，气温骤降，心脏病患者明显增多。有不少患者因为缺乏对心梗的足够认识，错过了最佳的抢救时机。
The US Navy submarine that struck an underwater object in the South China Sea last weekend was operating in one of the world's most difficult undersea environments， one filled with noise from ships above and a seabed with constantly shifting contours that can surprise any submarine crew， analysts say.
