---Look, Sue is over there.

--- That ____ be her. She is in Canada now.

A．mustn’ t

B．can’t

C．needn’t

D．won’t

骨肉瘤的临床表现，下列哪项不对

A．局部疼痛，夜间尤甚
B．肿瘤表面皮温高，有静脉怒张
C．X线片示骨破坏或骨硬化
D．有骨膜反应，呈日光射线现象和葱皮状
E．可发生病理骨折