单选题 ____, where extensive work, particularly to the ship’s structure may be repairedThese are the result of groundings collisions and other accidents.

单选题 The____should be kept running for about half an hour after （F.W.E.）

单选题 When stand-by before sailing, the duty engineer and officer should check clock, engine telegraph and rudder, and then write it in the ____.

单选题 When sailing in cold zones, the____ should be heated.

单选题 The purpose of engine stand-by is that ____.

单选题 One hour before sailing, the duty engineer and officer should check ____.

单选题 Starting a large propulsion diesel engine using diesel fuel during cold weather conditions can be made easier by _________.

单选题 The temperature of ___should be gradually reduced after （F.W.E.）

单选题 Before starting an engine by air, the engine must____.