何谓产后出血？应如何防治？
参考答案：
胎儿娩出后24小时内 * * 流血量达到或超过500毫升者称产后出血。多发生在产后2小时内，是引起产妇死亡的重要原因之一。常因产后宫缩乏力、胎盘滞留、软产道裂伤和凝血功能障碍等引起。
防治措施：首先做好围产期检查；详细询问病史是防止妊娠并发症和分娩并发症的重要措施。应到正规医院爱婴病房分娩；加强产时及产后巡视；进行母乳喂养等。
| 完形填空。 | |||
| Everyone needs friends. __1__ is nice to talk, laugh and do things with friend. __2__, sometimes we need to be alone. We don't always want people around. But we would feel lonely if we __3__ had a friend. No two people are just the same. Friends sometimes don't __4__ well with each other. That doesn't mean __5__ they no longer like each other. Most of the time they will make up and become friends again. Sometimes friends move away. Then we feel very sad. We miss them very much, so we __6__ them and write to them. It could be possible that we would see them again. And we can also __7__ new friends to get out. It is surprised to find out __8__ we like new people when we get to know them. There's more good news for people who have friends. They live longer than people who don't. Why? It may be because they are __9__. Being happy helps you stay well. Or it may be just because they know that someone cares. __10__ someone cares about you, you take better care of yourself. | |||
| ( ) 1. A. This ( ) 2. A. Whatever ( ) 3. A. always ( ) 4. A. get along ( ) 5. A. whether ( ) 6. A. ask ( ) 7. A. make ( ) 8. A. how many ( ) 9. A. stronger ( ) 10. A. But | B. It B. Unless B. ever B. get up B. why B. call B. help B. how much B. braver B. Although | C. That C. Since C. never C. get ready C. that C. tell C. search C. how often C. happier C. If | D. There D. However D. often D. get to D. what D. talk D. know D. how far D. richer D. Whenever |