1. [单选题]MARPOL公约附则II规定的特殊区域是:
A. 南极区域
B. 红海区域
C. 黑海区域
2. [单选题]freeboard
A. 吃水
B. 干舷
C. 高度
D. 水位线
3. [单选题]当艇筏上的遇难人员乘登完毕后,不应远离失事地点,一般划离难船:
A. 1/4海里
B. 2/4海里
C. 3/4海里
D. 1海里
4. [单选题]The trend nowadays is to build the frame box as a separate fabricated construction and then, after stress relieving and machining the mating surfaces, to mount it on the _____. This has the advantage of saving weight.
A. seating
B. bed-plate
C. entablature
D. cylinder block
5. [单选题]MARPOL公约将有毒液体物质污染分为()类。
A. 3
B. 4
C. 5