A.inconspicuous
B.conspicuous
C.a government facility or station
D.a radio transmitter
您可能感興趣的試卷
你可能感興趣的試題
A.coast to aircraft operational communications
B.aircraft to ship operational communications
C.lock & bridge communications
D.aircraft to ship navigational communications
A.without losing the rhythm of respiration
B.only with the help of two other people
C.by not stopping the respiration for more than 5 minutes
D.at ten minute intervals
A.It causes minimal damage
B.It is safer for personnel
C.It is cheaper
D.It is most effective on a per unit basis
A.Grade A flammable liquid
B.Grade C flammable liquid
C.Grade D combustible liquid
D.Grade E combustible liquid
A.six months
B.one year
C.two years
D.thirty months
最新試題
Considering the general circulation of the atmosphere，the wind system between latitudes 30°N and 60°N is commonly called the（）.
Day-shapes must be displayed（）.
Clouds form（）.
Chart legends printed in capital letters show that the associated landmark is（）.
Complete information on weather broadcasts throughout the world is contained in（）.
Changing rescuers while carrying out artificial respiration should be done（）.
Clean air standards referred to as “Grade D” apply to compressed air for use in（）.
Concerning a celestial observation，the azimuth angle is measured from the principal vertical circle to the（）.
Compared to internal structural plating，the exterior hull plating on a ship is usually（）.
Corrosive liquids and acids should have which kind of label?（）