广泛性骨转移瘤（）
A.普通X线平片
B.骨放射性核素显像
C.血管造影
D.CT
E.MRI
参考答案：B
27. ——Why did he stay at home?
——It was only _______ it was raining _______ he stayed at home.
A．since; so
B．because; that
C．for; that
D．as; what
阿司匹林片的测定（）
A．软膏剂
B．颗粒剂
C．胶囊剂
D．注射剂
E．药物制剂
