题目内容

Every ship _________on or after 1 February 1995 shall comply with all the applicable requirements of Chapter Four

A. constructs
B. constructed
C. has constructed
D. was onstructed

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In area A2, the DSC frequency for distress alerting is __________

A. 2182KHz
B. 2174.5KHz
C. 2191KHz
D. 2187.5KHz

In inmarsat-A, “Priority 3” means_________communication

A. routine
B. distress
C. urgency
D. safety

COSPAS-SARSAT cannot fulfill the function of

A. determining the position of a distress vessel
B. both a and c
C. distress communication
D. distress alerting and position fixing in Area A4

It is quite ______for an SES operator to send a distress alert.

A. easy and expensive
B. simple and certain
C. dangerous and stable
D. simple and certainly

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