海船船员考试
单选题On a working copy of a weather map，a cold front is represented by what color line? （）A RedB BlueC Alternating red and blueD Purple
题目
Red
Blue
Alternating red and blue
Purple
参考答案和解析
相似问题和答案
第1题：
A generally circular low pressure area is called a(n)______．
A.cyclone
B.anticyclone
C.cold front
D.occluded front
一般低压区叫气旋。
第2题：
An occluded front is caused by a(n) ______.
A.low pressure area
B.high pressure area
C.area of calm air
D.cold front overtaking a warm front
锢囚锋是由于冷锋赶上暖风造成的。
第3题：
Cold weather starting of a diesel engine is more difficult than warm weather starting due to
A.use of low viscosity oil in cold weather
B.increased moisture content of inlet air in cold weather
C.increased drag of pistons and bearings due to increased oil viscosity
D.higher compression pressures reached due to smaller clearances existing in the engine during cold weather
第4题：
B:comfortable
C:common
D:unusual
第5题：
B.such
C.too
D.so
第6题：
An isotherm is ______.
A.a line on a weather map connecting equal points of both temperature and pressure
B.an instrument that measures the climatological effects of temperature
C.a line connecting points of equal barometric pressure on a weather map
D.a line connecting points of equal temperature on a weather map
等温线是在天气图上相等温度的点的连线。
第7题：
Cyclones tend to move ______.
A.perpendicular to the isobars in their warm sectors
B.parallel to the isobars in their warm sectors
C.parallel to the line of the cold front
D.perpendicular to the line of the cold front
气旋趋向平行于暖区的等压线移动。
第8题：
______ in a charter-party are working days on which the weather allows loading work or discharging work to be done．
A.Whether working days
B.Weather working days
C.Running days
D.Calendar days
第9题：
B:wonderful
C:nice
D:cold
第10题：
coming cold weather conditions
a warm front weather condition
high pressure conditions
scattered cumulus clouds