周围性与中枢性面瘫的区别是前者()
A.患侧不能皱额、蹙眉、闭眼
B.患侧鼻唇沟变浅
C.患侧Bell征(+)
D.不伴对侧偏瘫
E.可伴对侧偏瘫
参考答案:A, C, D
如图所示,一带负电的小球用绝缘细线悬挂在水平方向的电场中处于平衡状态。由图可判定负电的小球受到的电场力方向 (填“向左”或“向右”),电场的方向向 (填左或右)。所受合力大小为 。
A: May I see your driver’s license and vehicle registration card, please B: ().
A. Sorry, don’t write me a ticket.
B. Ok. But I was driving at 65 miles per hour.
C. Sure. Did I do anything wrong
D. Yes. But I don’t think I’m a bad driver.