某一6层居民楼，高18米，某日5层居民因使用煤气罐不当发生火灾，邻居有数人被烟火围困

与尿路感染相关的机体抗病能力错误的是（）

A.尿液冲刷绝大部分细菌

B.尿中Hamm-Horsfall蛋白促进细菌黏附于尿路上皮

C.尿中免疫球蛋白能够杀伤细菌

D.膀胱表面的黏多糖组织细菌黏附

E.尿液pH低，不利于细菌生长

STCW78公约规定，在任何情况下，船员适任证书自签发之日起不得超过（）。

A、2年

B、3年

C、4年

D、5年

Kundai Mamoyo was employed as a sub-accountant by an Environmental Non-Governmental Organisation (NGO) called Green Strategies. After a probationary period of three months she was confi rmed as a permanent full-time employee with effect from 1 May 2008. According to her conditions of service she was entitled to 30 days’ vacation leave every year and at the end of each November she would be entitled to an annual bonus of US$1,000·00, which was the equivalent of her monthly salary. On 1 August 2009 she applied for 30 days’ leave to travel to Hong Kong on vacation. Her immediate superior, the accountant signed the leave forms and the Executive Director of the organisation Tamari Ngwarai, who in terms of the organisation’s policies and procedures was supposed to approve all applications for leave by all levels of staff, also signed them. The proposed dates of her vacation were from 1 September until 30 September 2009.A week before she was due to go on leave, she was informed by her immediate boss, the accountant that the Executive Director had decided to revoke Kundai’s leave and that she could not travel to Hong Kong because there was a lot of work that needed to be done in the offi ce. She did however still go on vacation. Upon her return to work on 1 October 2009 she was handed a suspension letter.The disciplinary hearing was convened on 1 November 2009. Kundai was found guilty of being absent from work without leave during the month of September 2009. She was denied her bonus for 2009 and as part of the disciplinary Tribunal’s judgment she was demoted to the position of bookkeeper. Kundai feels a deep sense of grievance over her treatment.Required:In relation to employment law in Zimbabwe, advise Kundai, who desires to obtain relief from the courts over her treatment by the company. (10 marks)

转子是一个有（）的运动系统，在这一系统中，轴承油膜的阻尼起主要作用。