--- What has happened to Alice ?

--- I don’t know. She__________her job.

A．can have lost

B．may have lost

C．should have lost

D．need have lost

颈椎活动正常范围是

A．前屈、后伸各60°～80°；左右旋转各60°～80°；左右侧屈各45°

B．前屈、后伸各35°～45°；左右旋转各60°～80°；左右侧屈各45°

C．前屈、后伸各35°～45°；左右旋转各35°～45°；左右侧屈各45°

D．前屈、后伸各35°～45°；左右旋转各60°～80°；左右侧屈各80°

E．前屈、后伸各35°～45°；左右旋转各60°～80°；左右侧屈各80°