董事会宣布任命一位新的首席执行官来领导公司的重组。

The board announced the ___appointment of a new CEO to lead the company's restructuring.

她接受了临时项目经理的职位，因为正式任职者正在休假。

She accepted a temporary ___appointment as project manager while the permanent holder was on leave.

他开创性的研究使他被任命为系主任，并承担了更多职责。

His groundbreaking research led to his ___appointment as the department chair and a significant increase in responsibilities.