治疗晕动病可选用
A.阿托品B.山莨菪碱C.东莨菪碱D.哌仑西平E.后马托品
参考答案:C
解析: 东莨菪碱脂溶性高,可进入中枢,抑制皮质及前庭功能。因此可抗晕动病。
My mother _________ a teacher for ten years. [ ]
A. has has
B. has been
C. have had
D. has had
新评级体系中,()对应原评级体系的AA级。
A.4-7级
B.3-6级
C.4-6级
D.5-6级