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1.大气中的()是温室气体,它对太阳短波辐射吸收甚少,强烈吸收和放射长波辐射,对地面和大气的温度分布有重要影响,类似温室效应。
单选题A. 氧气~||~水汽~||~臭氧~||~二氧化碳
2.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
3.受地球自转的影响并在控制力矩的作用下,陀螺仪主轴将作()的摆动。
单选题A. 螺旋线等幅~||~双曲线等幅~||~圆型等幅~||~椭圆等幅
4.当湿球因蒸发而消耗的热量和从周围空气中获得的热量相平衡时,湿球温度就不再继续下降,这样就维持了相对稳定的干、湿球温度差。干、湿球温度差值的大小,主要与当时的()大小有关。
单选题A. 气压~||~空气湿度~||~空气密度~||~能见度
5.()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
6.(),所以露点也直接反映空气中水汽含量多少的物理量。
单选题A. 露点越低,水汽含量越多~||~露点越低,水汽含量越少~||~露点高低不能反映水汽含量的多少~||~露点温度越高,水汽越不容易凝结
7.通常在中纬地区陆地上交角约为(),在海面上约为10°~20°。
单选题A. 30°~35°~||~35°~45°~||~45°~50°~||~50°~55°
8.通常将海陆热力差异形成的季风称为海陆季风,它主要出现在()
单选题A. 低纬地区~||~高纬地区~||~极地地区~||~赤道地区
9.It is dangerous for vessels without the use of radar______the estuary(河口).
单选题A. toget~||~toapproach~||~toproceed~||~toclose
10.In the Northern Hemisphere, when the wind at your location is northerly, the low pressure center causing the wind is located to your ______.
单选题A. NNW~||~WSW~||~ESE~||~SSW
11.It takes about 12 seconds to reverse______full speed ahead______full speed astern.
单选题A. at,to~||~to,from~||~from,to~||~at,from
12.由于作用在单位质量空气上的压力在水平方向上分布不均匀,所产生的力称为()
单选题A. 惯性离心力~||~地转偏向力~||~水平摩擦力~||~水平气压梯度力
13.Get searchlight______for transiting the canal at night.
单选题A. on~||~already~||~Almost~||~ready
14.观测时间一律使用世界时(UTC),每天按()观测四次。
单选题A. 00Z06Z12Z18Z~||~03Z09Z15Z21Z~||~00Z12Z~||~08Z14Z20Z02Z
15.MODERATE WAVES, TAKING A MORE PRONOUNCED LONG FORM;MANY WHITE HORSES ARE FORMED. This sea condition is likely to be termed ______.
单选题A. neargale~||~moderatebreeze~||~freshbreeze~||~strongbreeze
16.If a ship will call at four ports for discharging, i.e.A.B.C and D consecutively, the cargo for ______ must generally be loaded first.
单选题A. PortA~||~PortB~||~PortC~||~PortD
17.In beaufort wind scale,sea state with moderate waves,taking longer form,many whitecaps and some spray,is named as______.
单选题A. Strongbreeze~||~Freshbreeze~||~Stronggale~||~Gale
18.In the Northern Hemisphere, if the center of a high pressure area is due west of you, what wind direction would you expect?______.
单选题A. Southtowest~||~Southtoeast~||~Northtowest~||~Northtoeast
19.How many GMDSS operators are needed/required on board according to the provisions of the International Convention for the Safety of Life at Sea,1974?______.
单选题A. 4operators~||~3operators~||~2operators~||~1operator
20.冬季,长江口以北海域盛行偏北季风,()多为西北浪和北向浪。
单选题A. 渤海黄海东海南海~||~东海南海~||~黄海东海~||~渤海黄海
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