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单选题
Wen a hurricane passes over colder water or land and loses its tropical characteristics，the storm becomes a（n）（）.
A
High pressure area
B
Extratropical low-pressure system
C
Tropical storm
D
Easterly wave
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共用题干
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考题
Water transport occurs on inland waterways，such as（），and oceans.A、riversB、lakesC、canalsD、land
考题
单选题Since 1960, the fast-growing town of Hotstone, Arizona, has drawn water from the Gray River, which feeds Lake Mudfish. If the town’s water use continues to grow at its present rate, in about 20 years the water level of Lake Mudfish will inevitably decrease to the point that it can no longer support its biologically fragile population of fish. The prediction above is based on which of the following assumptions?A
As the town’s water requirements grow, it will not be able to meet those requirements by drawing on water sources other than the Gray River.B
Since 1960, the lake’s population of fish has become more biologically fragile.C
The amount of water that the lake loses to evaporation each year will increase over the next two decades.D
There are multiple sources of water besides the Gray River that feed into Lake Mudfish.E
The town of Hotstone will be able to reverse its trend of increasing water use if it implements an aggressive water conservation program.
考题
单选题What describes a flood current（）.A
Horizontal movement of the water toward the land after high tideB
Horizontal movement of the water toward the land after low tideC
Horizontal movement of the water away from the land following high tideD
Horizontal movement of the water away from the land following low tide
考题
单选题What generally occurs when the land is cooler than the nearby water? （）A
A land breezeB
A sea breezeC
A northerD
A prevailing westerly
考题
单选题In many areas atoll clouds (clouds of vertical development) are produced over small islands. These are the result of（）.A
rising air currents produced by the warm islandsB
warm air from the sea rising over higher land areasC
cool land air mixing with warm sea airD
descending air over the islands
考题
单选题When a tornado moves over the water from land it is called a（）.A
TornadoB
WaterspoutC
HurricaneD
Cyclone
考题
单选题（）forms over land，most frequently during autumn and winter over low-lying land，especially if it is damp and marshy and in valleys on quiet nights with clear skies.A
FRONTAL FOGB
MIXING FOGC
ADVECTION FOGD
RADIATION FOG
考题
单选题A hurricane moving northeast out of the Gulf passes west of your position. You could expect all of the following EXCEPT（）.A
higher than normal swellsB
high windsC
winds veering from south，through west，to northwestD
light showers
考题
单选题When a hurricane passes into high latitudes over colder water and the source of heat is disrupted，the storm assumes the characteristics of（）.A
a high pressure areaB
an extratropical cycloneC
a tropical stormD
an easterly wave
考题
单选题Why will a two stage flash type distilling plant tend to operate more efficiently when operating in cold seawater?（）A
The colder seawater passing through the condenser tube bundles of the various stages increases evaporator vacuumB
The amount of heated feed water discharged from the feed water heater after cndenser is increasedC
Fewer non-condensable gases are created by the flow of colder seawaterD
More seawater is allowed to pass through the flint stage overflow weir
考题
单选题In （）, hot diesel engine jacket water passes over the stack and heats the sea water passing through the tubes.A
a flash generatorB
a flash evaporatorC
a vacuum boiling evaporatorD
a boiler
考题
单选题Where a propeller shaft passes through the hull，water is prevented from entering by means of a（）.A
stuffing boxB
propeller bossC
seacockD
stop-water
考题
单选题Steam smoke will occur when（）.A
extremely cold air from shore passes over warmer waterB
warm dry air from shore passes over cooler waterC
cold ocean water evaporates into warm airD
cool rain passes through a warm air mass
考题
单选题The North Pole is surrounded by land, while the South Pole is surrounded by the Antarctic Ocean.So scientists thought that______.A
most of the ice melted in the Northern hemisphereB
most of the ice melted in the Southern hemisphereC
The North Pole is colder than the South PoleD
The South Pole is colder than the North Pole
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