【单选题】Every vessel shall_____ maintain a proper look-out by sight and hearing as well as by all available means appropriate in the prevailing circumstances and conditions so as to make a fall appraisal of t...
【多选题】根据优化目标的不同,网络计划的优化可分为( )
【多选题】根据优化目标的不同,网络计划的优化可分为()。
【单选题】Under the terms CFR, the freight as well as the risk of loss or damage to the goods is transferred from the seller to the buyer when the goods pass the ship's rail ( ).
A.
in the port of shipment
B.
in the port of destination
C.
in the port of delivery
【判断题】聚类分析可以用于对样品进行分类,但不可以用来对变量进行分类。
【简答题】链形悬挂具有弛度变化小、( ) 、稳定性好等优点。
【单选题】Every vessel shall ________maintain a proper look-out by sight and hearing as well as by all available means appropriate in the prevailing circumstances and conditions so as to make a full appraisal o...
【单选题】某船真航向045°,航速10节,测得视风向为左舷90°,视风速5m/s,其真风向和真风速为: