Sound can travel through water for enormous distances, prevented from
￣￣￣￣￣￣￣
disspating its acoustic energy as a result of boundaries in the ocean
￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣
created by water layers of different temperatures and densities.
A. prevented from disspating its acoustic energy as a result of
B. prevented from having its acoustic energy dissipated by
C. its acoustic energy prevented from dissipated by
D. its acoustic energy prevented being dissipated as a result of
E. preventing its acoustic energy from dissipating by
答案是C
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