动态规划的最忧性原理保证了从某一状态开始的未来决策独立于先前自己做出的决策。
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离心式压缩机干气密封系统,在压缩机机体中清洁的缓冲气通过密封泄漏后排往()。
A. 工艺系统
B. 大气中
C. 火炬系统
D. 燃料气系统
某投机者在做空头交易时运用了止损指令,则止损指令将在期货价格下跌时生效。()
A. 正确
B. 错误
根据《GB50009-2001建筑结构荷载规范》规定,构筑物上所受的力分为两类:一类是直接作用;另一类为间接作用。而荷载仅等同于()作用。
A. 直接
B. 间接
C. 永久
D. 偶遇
() means the person designated by the Company for ensuring that a ship security assessment is carried out; that a ship security plan is developed, submitted for approval, and thereafter implemented and maintained and for liaison with port facility security officers and the ship security officer.
A. Ship security officer
B. Company security officer
C. Port facility security officer
D. PSC officer