[问答题] 简述虾维生素C缺乏病的防治方法。

当代组织文化的转变表现在哪些方面？ 煤气管道冷凝液水封槽一般水封高度≥（） ["2米","1米","1.2米","1.6米"] The longer the ignition delay period occurs in a diesel engine, the （）. ["less fuel will enter the cylinder","lower will be cylinder compression temperatures","more complete will be fuel combustion","more rapid will be the rise in combustion pressure"] Poor combustion in a diesel engine can be caused by （）. ["high compression pressure","low intake air temperature","low exhaust pressure","high scavenge air pressure"] 对于一个液化气球罐来说，当球罐收发液化石油气时，该系统就为（）。 ["孤立系统","闭口系统","绝热系统","开口系统"] 简述虾维生素C缺乏病的防治方法。