【多选题】
A Instruction: This indicates that the following message implies the intention of the sender to inform others about danger.
B Advice: This indicates that the following message implies the intention of the sender to influence others byaRecommendation.
C Warning: This indicates that the following message implies the intention of the sender to influence others byaRegulation.
D Information: This indicates that the following message is restricted to observed facts, situations, etc..
查看更多
