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1.冷高压(ColdHigh)形成于寒冷的中、高纬度地区,如北半球的格陵兰、加拿大、北极、西伯利亚和蒙古等地,一年四季均有活动,()最频繁。
单选题A. 春季~||~夏季~||~秋季~||~冬季
2.当船舶航行在环行航道区域时,应()
单选题A. 在环行航道内,船舶向右绕分隔点或圆形分隔带航行~||~在环行航道内,船舶按顺时针方向绕分隔点或圆形分隔带航行~||~在环行航道内,船舶向左绕分隔点或圆形分隔带航行~||~在环行航道内,船舶出口时向左进口时向右绕分隔点或圆形分隔带航行
3.(),如辽阔的海洋、无垠的沙漠、冰雪覆盖的大陆和极区等都可成为气团形成的源地。
单选题A. 大范围物理性质不均匀的下垫面~||~低层存在逆温~||~对流层风的垂直切变要小~||~具备大范围性质比较均匀的下垫面
4.在海平面上大气压为1013hpa,高度每升高1000英尺(304.8m),降低()
单选题A. 35hpa~||~36hpa~||~37hpa~||~38hpa
5.AIS目标的缺省显示为()
单选题A. 休眠目标~||~激活目标~||~危险目标~||~丢失目标
6.It is the responsibility of the crane operator to, at all times, be aware of the location of the __.
单选题A. load~||~hook~||~boom~||~Alloftheabove
7.500hPa等压面的平均海拔高度约为()
单选题A. 4500m~||~5000m~||~5500m~||~6000m
8.A vessel on the high seas that is not under command shall display which of the following day signals? ______
单选题A. Twoblackballs~||~Threeblackballs~||~Tworedballs~||~Threeredballs
9.Do not______the watch to the relieving officer until he has verbally expressed his acknowledgment of the information which has been passed by the officer handing over.
单选题A. turnover~||~handover~||~handsoff~||~takeover
10.A vessel engaged in fishing shall not impede the passage of______following a traffic lane.
单选题A. (1)~||~(1)&(2)~||~(3)~||~(4)
11.适宜的风场:一般认为()风有利于平流雾的发展。
单选题A. 无风~||~2~4级~||~5~6级~||~7~8级
12.在空气纬度和密度相同时,高气压区中等压线的分布规律是()
单选题A. 曲率半径越小的地方越密集~||~曲率半径越大的地方越稀疏~||~曲率半径越小的地方越稀疏~||~等压线疏密与曲率半径无关
13.All the crewmembers shall be at the station as required by the muster list when in firefighting drill______minutes after hearing the alarm,and the duty engineer shall be able to make the fire pumps available with______minutes.
单选题A. 2/5~||~2/3~||~3/2~||~2/2
14.()地区日较差比潮湿地区的大。
单选题A. 沙漠~||~大洋~||~沿岸~||~内陆
15.______20 targets can be tracked at one time.When maximum tracking capacity is reached,no further acquisitions(捕获) are possible.
单选题A. Asmanyas~||~Somanyas~||~Asmuchas~||~Asmoreas
16.天气系统的()可产生平流雾。
单选题A. 冷锋后部~||~低压的后部~||~移动性高压的后部~||~移动性高压的前部
17.A correction for augmentation is included in the Nautical Almanac corrections for ______.
单选题A. theSun~||~theMoon~||~Venus~||~Noneoftheabove
18.根据()的不同特征又可以将对流层分为行星边界层或摩擦层和自由大气。
单选题A. 气温~||~大气运动~||~湿度~||~气压
19.()附近,昼夜长短几乎相等,最热月和最冷月热量收支相差不大,气温年较差小。
单选题A. 沙漠~||~草地~||~海洋~||~赤道
20.南太平洋的西风漂流日流速达10nmile,沿40°~50°S纬度圈流动,属于()
单选题A. 暖流~||~冷流~||~中性流~||~补偿流
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