抽屉实验可用于检查膝关节哪一结构的损伤？（）
A.前、后交叉韧带断裂
B.腓侧副韧带断裂
C.内侧半月板损伤
D.外侧半月板损伤
参考答案：A
— Could I have a look at the photo of your family, Sam?
— Of course you _____.[ ]
A. may
B. can
C. could
电子束治疗多为表浅的肿瘤，一般选择深度（）
A.<2cm
B.<3cm
C.<5cm
D.<10cm
E.<25cm
