题目

People who are outdoors in cold weather should avoid actions like suddenly lifting a heavy basket full of snow. Even walking through heavy, wet snow can strain a person’s heart. Many people aren’t conditioned to the physical stress of outdoor activities and don’t know the dangers of being outdoors in cold weather. Those who like winter sports can suffer accidental hypothermia if they don’t make certain preparations. Hypothermia means the body temperature has fallen below normal. It occurs when your body can’t produce enough energy to keep the internal (内部的) body temperature war下列说法中正确的是（　　） A、先进行细胞质的分裂，再进行细胞核的分裂B、先进行细胞核的分裂，再进行细胞质的分裂C、两者同时进行D、两种情况都有可能发生