—Excuse me, where are we going to have our class?

—I'm not sure. Ask our monitor, please. He _____ know. [ ]

A. can

B. may

C. need

D. shall

膝关节韧带损伤治疗，“以提高腘绳肌肌力训练为主，禁忌股四头肌的等张肌力训练”的是（）

A.前交叉韧带损伤

B.后交叉韧带损伤

C.膝内侧副韧带损伤

D.膝外侧副韧带损伤

E.韧带重建术后使用了金属物固定