一动圆与圆x2+y2=1外切，而与圆x2+y2-6x+8=0内切，则动圆圆心的轨 发布时间：2017-04-25 14:32 │ 来源：www.tikuol.com 题型：填空题 问题： 一动圆与圆x2+y2=1外切，而与圆x2+y2-6x+8=0内切，则动圆圆心的轨迹是______．
题型：填空题 从II 栏中找出I 栏中相对应的答语. I( )1. What's in the basket? ( )2. What are you doing? ( )3. When were you born? ( )4. Where is your Chinese teather? ( )5. Are there any old men nearby? IIA. I was born in 1995. B. Some eggs. C. In his office. D. No,there aren't. E. I'm washing my clothes. 查看答案
题型：填空题 患者女性，21岁。上班途中不慎掉入污水沟，会阴部有擦伤，未作处理。第3日体温39.2℃，且感会阴部肿痛。此时最可能的是（）A.处女膜破裂B.小阴唇裂伤C.大阴唇裂伤D.巴氏腺囊肿E.重度感冒 查看答案