Dismissal of a civil servant: Refers to an act or fact that the employment department or unit of a state organ has terminated its positional relationship with a staff member under certain conditions in accordance with the law. Which of the following administrative actions must be dismissed:. ['Civil servant Wang has been absent from work for 30 days without a reason in less than one year. According to the relevant regulations of civil servants, he had to leave the unit.', 'Zhang has been working in an institution for 30 full years, and he has reached 60 in this year.', 'Zhou was admitted to the General Office of the Provincial Government for secretarial work after passing an exam last September. Although hard-working and diligent, it is still difficult to be competent. Relevant departments have to ask him to seek another job in accordance with the "Interim Regulations of the National Civil Service".', 'The application for the departure of a civil servant is approved by the competent authority, leaving the original unit to work for a company.']