94. Reserve buoyancy is the ______.

Stability is determined principally by the location of two points in a vessel: the center of buoyancy and the（）.

What are the main parts of submarine remote control vehicle?( ) A: Self propulsion B: Buoyancy control C: Ballast D: Pipeline

The height of the metacenter above the keel will vary depending on the（）. A: draft and beam of the ship B: displacement and deadweight of the ship C: buoyancy and trim of the ship D: tonnage and deadweight of the shi

Fishes WOULD NOT regulate their buoyancy by which of the following ways? A: regulation of gasses in the swim bladder B: retention of oils in the liver C: possession of relatively light bones D: possession of relatively dense bones E: structure and orientation of the fins

When a davit-launched raft is lowered from a ship，upon becoming waterborne，the raft is released by（）. A: activating the release lock of the hook B: pulling smartly on the knobbed cocking lanyard C: the effects of buoyancy removing the weight of the raft from the hook D: releasing the boarding flap and the bowsing line

The correct statements about fats include: A: No fat on the membrane B: Fat tends to pile up inside the cell, mainly stabilized by hydrophobic bonds C: As an energy storage substance, its energy storage efficiency is higher than glycogen or protein D: It is suitable as a long-term energy reserve for organisms E: Fat also has the function of keeping warm and increasing buoyancy