Cold weather
An earthquake
A flood
第1题:
The direction of prevailing winds in the Northern hemisphere is caused by the ______.
A.Magnetic field at the North Pole
B.Gulf Stream
C.Earth's rotation
D.Arctic cold fronts
第2题:
Brief, violent showers frequently accompanied by thunder and lightning are usually associated with ______.
A.passage of a warm front
B.winds shifting counterclockwise in the Northern Hemisphere
C.stationary high pressure systems
D.passage of a cold front
第3题:
第4题:
第5题:
northeast
west-southwest
northwest
south-southeast
第6题:
Cold weather
An earthquake
A flood
第7题:
Editorials.
Articles on international events.
Latest magazines.
All the news.
第8题:
An urgent message concerning a vessel in distress
A weather advisory about unusual meteorological or oceanographic phenomena hazardous to vessels
A broadcast disseminating an official government proclamation affecting shipping
A radio navigational warning concerning a particularly hazardous condition affecting navigation
第9题:
Magnetic field at the North Pole
Gulf Stream
Earth's rotation
Arctic cold fronts
第10题:
clockwise around the North Atlantic and North Pacific Oceans
clockwise or counterclockwise depending on whether it is warm or cold current
counterclockwise except in the Gulf Stream
counterclockwise around the North Atlantic and North Pacific Oceans
第11题:
Close the hatch, accesses and ventilators at once. Flood CO2 into hold.
Open the hatch, accesses and ventilators at once. Flood CO2 into hold.
Close the hatch, accesses and ventilators at once. Flood water into hold.
Open the hatch, accesses and ventilators at once. Flood water into hold.
第12题:
passage of a warm front
passage of a cold front
winds shifting counterclockwise in the Northern Hemisphere
stationary high pressure systems
第13题:
Aboard a survival craft, ether can be used to ______.
A.start the engine in cold weather
B.aid in helping personnel breathe
C.prime the sprinkler system
D.prime the air supply
第14题:
第15题:

第16题:
If there is a fire in a hold, what should you do?()
第17题:
Clockwise and outward
Counterclockwise and inward
Counterclockwise and outward
Clockwise and inward
第18题:
Change direction in a clockwise manner in the Northern Hemisphere
Circulate about a low pressure center in a counterclockwise manner in the Northern Hemisphere
Vary in strength constantly and unpredictably
Circulate about a high pressure center in a clockwise manner in the Southern Hemisphere
第19题:
第20题:
Brown was not warmly welcomed.
Obama is coming to make up for the cold reception that Brown got.
There was no formal news conference.
Brown made a speech on the American Congress.
第21题:
According to
two-thirds of
was made
after the storm
第22题:
few
little
several
a
第23题:
Red
Blue
Alternating red and blue
Purple
第24题:
the transformation of these valleys and plains
the use of these valleys’ soil and water
the timing of flood seasons
the calendar