近距离治疗放射源定位的常用定位方法不包括（）
A.正交胶片法
B.立体平移胶片法
C.等中心胶片法
D.CT法
E.MR法
参考答案：E
肝浊音界上移
A.急性肝炎
B.肝淤血
C.肝硬化
D.脂肪肝
E.右下肺不张
Had I known about this computer program, a huge amount of time and energy _____. [ ]
A. would have been saved
B. had been saved
C. will be saved
D. was saved
