Water allowed to accumulate in the hydraulic system oil will cause an oxidation process producing by- products which are normally （）. ["gums, acids, and varnishes","removed by cellulose type filters","neutralized by oil additives","not removed by absorbent filter"]
If the Shipowner makes an innocent misrepresentation which induces the Charterer to sign the contract，the Charterer may be entitled to（）the charter-party. ["rescind","change","alter","amend"]
简述会展项目管理的过程。
简述锚头鱼蚤病的症状和病理变化。
敏感炸药要轻拿轻放，工业炸药没必要轻拿轻放。
简述智能高频开关电源的安全操作规程。
