Single whip
Gun tackle
Luff tackle
Twofold purchase
第1题：
If the salvor has carried out salvage operations in respect of a vessel which by itself or its cargo threatened damage to the environment and ___________ a reward under Article 13 at least equivalent to the special compensation assessable in accordance with this Article，he shall be entitled to special compensation from the owner of the vessel equivalent to his expenses as herein defined.
A.has earned
B.has failed to earn
C.has rendered
D.has failed to render
第2题：
As compared to carbon dioxide, dry chemical has which advantage? ______.
A.Cleaner
B.Effective on metal fires
C.Greater range
D.More cooling effect
第3题：
A. You can reach other Level 2 routers.
B. It can reach at least one other defined area.
C. The router is reachable by at least two ES-IS nodes.
D. It has at least one enabled reachable prefix with a valid metric defined.
第4题：
Provides for faster loading
Lowers oxygen content in the tank
Provides better fuel economy
All of the above
第5题：
Which of the following is an advantage that a USB mouse has over a PS/2 mouse?（）
第6题：
Your vessel has a gasoline engine and a mechanical exhaust ventilation system．BEFORE starting the engine，the exhaust blower should be run long enough to ______．
A.warm up the exhaust blower motor
B.provide a proper supply of fresh air for the engine（s）
C.see the system is in good operating condition
D.insure at least one complete change of air in the compartments concerned
第7题：
Communication with a remote host has failed. Which command is LEAST helpful in isolating the failure?（）
第8题：
A tackle is "two blocked" when the blocks are ______.
A.equally sharing the load
B.jammed together
C.as far apart as possible
D.rove to the highest mechanical advantage
第9题：
Which two conditions, when met, allow an IS-IS Level 2 router to be considered attached?（）
第10题：
operated manually once an hour
operated until the engine has started
placed into operation only at maximum load
adjustable to meet lubrication requirements