1. [单选题]______标志着可燃物质的易燃、易爆程度。
A. 闪点
B. 凝固点
C. 燃点
D. 自燃点
2. [单选题]抛放海锚操作的主要技术要点是( )。
A. 操艇首处于顶风顶浪状态，从艇首抛放出海锚，绳索松放合适的长度后系牢
B. 操艇首处于顶风顶浪状态，从艇尾抛放出海锚，绳索松放合适的长度后系牢
C. 操艇首处于顺风顺浪状态，从艇尾抛放出海锚，绳索松放合适的长度后系牢
3. [单选题]The officer in charge of the engineering watch shall ensure that all machinery involved with the maneuvering of the ship can immediately be placed in the __ of operation when notified that the ship is in congested waters.
A. manual mode
B. automatic mode
C. remote mode
D. follow-up mode
