全口义齿制作有误,患者做正中咬合时,不可能有下列哪种现象()
A.下颌后退
B.下颌偏斜
C.前牙开
D.与架上完成排牙状态一样
E.垂直距离增高
参考答案:D
能够对血栓形成部位进行选择性溶栓的药物是()。
A.尿激酶
B.肝素
C.链激酶
D.甘露醇
E.重组的组织型纤溶酶原激活剂
As a member of the Youth League, you should _________ other students. [ ]
A. give an example of
B. set an example to
C. make an example for
D. take an example for