长期耳鸣耳聋的成因有哪些（）
A.气血瘀阻
B.肾虚精亏
C.肝火上扰
D.肝肾阴虚
E.痰湿内朦
参考答案：B, D
Professor Smith told me that the book was well worth _____. [ ]
A. reading
B. to be read
C. to read
D. being read
肩关节可抗充分阻力前屈至150°则屈肩肌群肌力为MRC（）
A.5级
B.5-级
C.4+级
D.4级
E.4-级
