已知x+y=﹣5，xy=6，则x2+y2的值是[ ] A．1 B．13 C．17 发布时间：2017-05-15 22:51 │ 来源：www.tikuol.com 题型：选择题 问题： 已知x+y=﹣5，xy=6，则x2+y2的值是[ ]A．1B．13C．17D．25
题型：选择题 根据短文内容，从方框中选择适当的单词并用其正确形式填空，使短文完整正确。（每个词只能用一次，有两个多余词） into. be. meaning. all. ill. fill. of. one. or. look. do. pride In one's life, one spends the most time 1. with oneself. But one has the least understanding of oneself. When you are successful, you may be very 2. . When you fail, you may lose heart. If you don't get a thorough understanding of oneself (彻捂自我), you may miss many chances in life. To get a thorough understanding of oneself is to know well about yourself. You may realize your strongpoints and weak 3. . You may hope for a wonderful future, but be sure not to expect too much because not 4. dreams can come true. You may be confident enough to meet challenges, but first youshould know what 5. . To get a thorough understanding of oneself needs self-appreciation. Maybe you think you are a talltree 6. just small grass, but you can always have your own way of being there. As soon as you getfull confidence in yourself, you are sure to face any trouble. To get a thorough understanding of oneself also 7. to take care of yourself. When you are angry,find a quiet place so that you won't be hurt. When you are sad, tell your friends about it to change the mood(心情)8. a good one. When you are tired, get a good sleep. If you don't know when and how you should look after yourself, you won't be able to stay away from 9. . No one can tell what will happen in the future, Get a thorough understanding of yourself, and you willget a full control (控制) of yourself and find your life 10. of color. 查看答案
题型：选择题 男，48岁，发热、呕吐、腹泻2天，意识模糊、烦躁不安半天急诊入院。查体：BP160/100kpa，神志恍惚，巩膜中度黄染，颈部可见散在分布的蜘蛛痣，心肺未见异常，腹软，肝肋下未触及，脾肋下4．0cm，双上肢散在出血点。血红蛋白89g／L，白细胞3．1×109／L；血糖6．8mmol／L，尿糖（+），尿镜检（-）。为确诊需要进行的辅助检查是（）A.血气分析B.腹部CTC.颅脑CTD.血氨测定E.肾功能检查 查看答案