单项选择题
When anchoring in open anchorage, chief engineer should consult with captain （）
A.if the ship must be stand by B.if M-E should be stopped C.if keep-watching as in voyage D.if the ship must anchor two anchors
单项选择题 In the voyage, duty officer should inform （） situation to the duty engineer immediately.
单项选择题 Statutory survey could be divided into two kinds, they are （）
单项选择题 （）is not the main function of CCS.
