单项选择题
A.exchange B.to exchange C.exchanging D.exchanged
Monitoring is especially important in a highly automate...
单项选择题Monitoring is especially important in a highly automated system which is dependent on careful()procedure and format.
A.adherence to B.adoption to C.relaying on D.usage of
The rescue coordination center may()on stations which i...
单项选择题The rescue coordination center may()on stations which interfere with traffic.
A.keep silence B.forbid transmission C.change information D.impose
Particular care should be()in selecting CESs in areas w...
单项选择题Particular care should be()in selecting CESs in areas where Ocean Regions overlap.
A.taken B.take C.took D.taked