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单选题
INTERTROPICAL CONVERGENCE ZONE OVER SOUTH PHILIPPINE PASSING OVER MINDANAO NORTHERN SULU AND PALAWAN.This paragraph is likely to be under the heading of（）.
A
GALE WARNING
B
24 HOURS FORECAST
C
SYNOPSIS
D
STORM WARNING
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翻译句子The South Pole, by contrast, is over land, on the continent called Antarctica. Not only is the South Pole on a continent, it's on a very high continent.
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INTERTROPICAL CONVERGENCE ZONE OVER SOUTH PHILIPPINE PASSING OVER MINDANAO NORTHERN SULU AND PALAWAN．This paragraph is likely to be under the heading of ________ ．A.GALE WARNINGB.24 HRS FORECASTC.SYNOPSISD.STORM WARNING
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In a narrow channel or fairway when overtaking can take place only if the vessel to be over-taken has to take action to permit safe passing， the vessel intending to overtake shall indicate her intention by sounding appropriate signal． This means that ________ ．A.the vessel to be overtaken shall sound appropriate signal firstB.the overtaking vessel shall sound appropriate signal firstC.the overtaking vessel shall take action to permit safe passingD.the vessel to be overtaken shall take action to permit safe passing before hearing appropriate signal
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The first indications a mariner will have of the approach of a warm front will be ______.A.large cumulonimbus (thunderclouds) building upB.high cirrus clouds gradually changing to cirrostratus and then to altostratusC.fog caused by the warm air passing over the cooler waterD.low dark clouds accompanied by intermittent rain
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Advection fog may be formed by cold air passing over a ______.A.colder sea surfaceB.warmer sea surfaceC.dry coastal plainsD.high mountain or plateau
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The plain occupies the west,south and central parts of the continent,though considerable variations are to be found over so（ ）an area.A.expensive
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Deforestation and Desertification(沙漠化)
The Sahel zone lies between the Sahara desert and the fertile savannahs(热带大草原)of northern Nigeria and South Sudan. The word sahel comes from Arabic and means marginal or transitional ,and this is a good description of the semi-arid(半干旱) lands, which occupy much of the Western African countries of Mail, Mauritania, Niger ,and Chad.
Unfortunately, over the last century the Sahara desert has steadily crept southwards eating into once productive Sahel lands. United Nations surveys show that over 70 percent of the dry land in agriculture use in Africa has deteriorate dover the last 30 years. Droughts have become more severe, the most recent lasting over twenty years in parts of the Sahel region. The same process of desertification is taking place across southern Africa as the Kalahari desert advances into Botswana and parts of South Africa.
One of the major causes of this desert advance is poor agricultural land use, driven by the pressures of increasing population. Overgrazing一 keeping too many farm animals on the land一means that grasses and other plants cannot recover, and scarce water supplies are exhausted. Over cultivation一 trying to grow too many crops on poor land一 results in the soil becoming even less fertile and drier, and beginning to break up. Soil erosion (侵蚀) follows, and the land turns into desert.
Another cause of desertification is loss of tree cover. Trees are cut down for use as fuel and to clear land for agricultural use. Tree roots help to bind the soil together, to conserve moisture, and to provide a habitat for her plants and animals. When trees are cut down, the soil begins to dry and loosen, wind and rain erosion increase, other plant species die, and eventually the fertile top soil may be almost entirely lost, leaving only bare rock and dust.
The effects of loss of topsoil and increased drought are irreversible. They are, however, preventable. Careful conservation of tree cover and sustainable agricultural land use have been shown to halt deterioration of soils and lessen the effects of shortage of rainfall. One project in Kita in south-west Malifunded by UNDP has involved local communities in sustainable management offorest, while at the same time providing a viable(有活力的)agricultural economy. This may be a model for similar projects in other West African countries.
文章{1~5)
The Sahel zone is an area which _____.A.is covered with sad and grass
B.has a long history
C.occupies much of South Nigeria
D.belongs to Sudan
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单选题Advection fog may be formed by cold air passing over a（）.A
colder sea surfaceB
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单选题Your company has a main office and two branch offices that are connected by WAN links. The main office runs the DNS service on three domain controllers. The zone for your domain is configured as an Active Directory-integrated zone. Each branch office has a single member server that hosts a secondary zone for the domain. The DNS servers in the branch offices use the main office DNS server as the DNS Master server for the zone. You need to minimize DNS zone transfer traffic over the WAN links. What should you do？（）A
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考题
单选题The first indications a mariner will have of the approach of a warm front will be （）.A
large cumulonimbus (thunderclouds) building upB
high cirrus clouds gradually changing to cirrostratus and then to altostratusC
fog caused by the warm air passing over the cooler waterD
low dark clouds accompanied by intermittent rain
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单选题Intertropical convergence zone over south Phillippine passing over Mindanao northern Sulu and Palawan. This paragraph is likely to be under the heading of（）.A
gale warningB
24 hours forecastC
synopsisD
storm warning
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单选题INTERTROPICAL CONVERGENCE ZONE OVER SOUTH PHILIPPINE PASSING OVER MINDANAO NORTHERN SULU AND PALAWAN.This paragraph is likely to be under the heading of（）.A
GALE WARNINGB
24 HOURS FORECASTC
SYNOPSISD
STORM WARNING
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单选题What is the benefit of using Anycast RP via RFC 4610 for IP multicast RP redundancy？（）A
Improves convergence of the multicast network due to enhanced RPF checksB
Simplifies the number of control plane protocols over other RP redundancy methodsC
Eliminates the use of Protocol Independent Multicast （PIM） in the topologyD
Increases the administrative distances in Multicast Source Discovery Protocol （MSDP） configuration
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单选题In summer, monsoon over the South China Sea blows from（）.A
northeastB
southwestC
southeastD
northwest
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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
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单选题The satellites over the major ocean regions cover the globe（）.A
besides the polar regionsB
including the North Pole and the South PoleC
above 70°N and below 70°SD
as for north and south as 70°
考题
单选题Your company has a main office and two branch offices that are connected by WAN links. The main office runs the DNS Server service on three domain controllers.The zone for your domain is configured as an Active Directory-integrated zone.Each branch office has a single member server that hosts a secondary zone for the domain.The DNS servers in the branch offices use the main office DNS server as the DNS Master server for the zone.You need to minimize DNS zone transfer traffic over the WAN links.What should you do？（）A
Decrease the Retry Interval setting in the Start of Authority (SOA) record for the zone.B
Decrease the Refresh Interval setting in the Start of Authority (SOA) record for the zone.C
Increase the Refresh Interval setting in the Start of Authority (SOA) record for the zone.D
Disable the netmask ordering option in the properties of the DNS Master server for the zone.
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单选题The satellites over the major ocean regions cover the globe（）.A
besides the polar regionsB
including the North Pole and the South PoleC
above 70N and below 70SD
as far north and south 70
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单选题When a vacuum boiling evaporator works, the hot jacket water will pass over the tube stack and （） the sea water passing through the tubes.A
disposeB
dissolveC
heatD
dissipates
考题
单选题The fog produced by warm moist air passing over a cold surface is called（）.A
conduction fogB
radiation fogC
frontal fogD
advection fog
考题
单选题The gap in the ozone hole over the North Pole can expand each summer enough, that it exposes regions as far south as Sweden by heightened UV radiation, also increasing rates of skin cancer in the northern regions by as much as 50 percent.A
that it exposes regions as far south as Sweden by heightened UV radiation, also increasingB
that regions as far south as Sweden have been exposed to heightened UV radiation, as well as having increasedC
to expose regions as far south as Sweden to heightened UV radiation, increasedD
to expose regions as far south as Sweden to heightened UV radiation and increaseE
that exposure to heightened UV radiation in regions as far south as Sweden, as well as increasing
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