If the Shipowner has failed to carry out a term of a time charter-party whereby he undertakes to maintain the vessel in a seaworthy state，this only（）the Charterer to sue him for damages，and not to repudiate the charter-party. ["complies","entitles","supplies","provide"]
简述展览项目的分类。
经电解法COD降解处理后的污水能否排放，以从（）中取样分析的结果为依据。 ["消解池","污水缓冲罐","滤罐","污泥沉淀池"]
涠洲终端污水中含有的1%NaCl，在电解法降解COD时，其中的Cl-在阳极上以（）的形式析出。 ["氯气","NaCl","HCl","次氯酸"]
简述胡瓜鱼蚤病的病原。
简述录音仪的安全操作规程。
