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【单选题】
肠鸣音活跃见于A.
腹膜炎
B.
肠麻痹
C.
机械性肠梗阻
D.
急性胃肠炎
E.
低钾血症
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【简答题】已知椭圆的焦点在 轴，长轴长 为10，离心率为 ，则该椭圆的标准方程为 。
【简答题】“What is success?” Mr Gruber asked his 6 th grade business class. It was his opening conversation for the first class of the term. “Success is riding in a sweet car, watching an 80-inch TV, and living...
【简答题】On August 18th US News & World Report released its 2007 rankings of America’s top colleges. The surv ey began in 1983 as an unofficial opinion poll, when the magazine asked 662 college presidents to i...
【简答题】某公园内有一椭圆形景观水池，经测量知，椭圆长轴长为20米，短轴长为16米，现以椭圆长轴所在直线为 轴，短轴所在直线为 轴，建立平面直角坐标系，如图所示： （1）为增加景观效果，拟在水池内选定两点安装水雾喷射口，要求椭圆上各点到这两点距离之和都相等，请指出水雾喷射口的位置（用坐标表示），并求椭圆的方程。 （2）为了增加水池的观赏性，拟划出一个以椭圆的长轴顶点A、短轴顶点B及椭圆上某点M构成的三角形区...
【简答题】完形填空 East week, a thing occurred in the classroom of a 4th-grade at Chino Valley Unified School. It was Autism(自闭症) Awareness Month and every 41 had been asked to have each student 42 a paper ...
【单选题】Sometimes the student may be asked to write about his______to a certain book or article that has some bearing on the subject being studied.
A.
reaction
B.
comment
C.
impression
D.
comprehension
【简答题】I was 15 when I walked into McCarley Bookstore and began to look over the titles of the books on the shelves.The man behind the counter, the owner of the bookstore, asked me if I would like a job.I ne...
【简答题】如果一个椭圆的长轴长是短轴长的两倍，那么这个椭圆的离心率为______．
【简答题】椭圆 + =1的长轴长为_________,短轴长为_________,焦点坐标为_________,顶点坐标为_________,离心率为__________.
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