A、to type
B、typed
C、typing
D、type
第1题:
A、his’
B、his
C、he’s
D、he
第2题:
You are signing on a deck officer,who will be designated as one of the GMDSS operators,before sailing foreign.Which statement is TRUE ________.
A.He/she must have an STCW certificate endorsed as“Valid for Service on Vessels Operating in the GMDSS System”
B.He/she must present either an FCC-issued license or a Coast Guard-issued license
C.You must consult the“List of Qualifications”on the reverse of his/her FCC-issued license
D.His/her Merchant Mariners Document must have an added endorsement as “Radio Electronics Officer”
第3题:
第4题:
It took me three hours _______ the task.
A、finishing
B、to finish
C、finish
D、finished
第5题:
第6题: