按照披露时间的不同，货币市场基金收益公告可分为( )。

A．偏离度公告

B．封闭期的收益公告

C．开放日的收益公告

D．节假日的收益公告

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”