[讨论][求助]

GWD-TN-17  GWD26-Q37

Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities.

A. prevented from dissipating its acoustic energy as a result of

B.prevented from having its acoustic energy dissipated by

C. its acoustic energy prevented from dissipating by

D. its acoustic energy prevented from being dissipated as a result of

E. preventing its acoustic energy from dissipating by

answer is C. 不清楚its指的是sound还是water? 请问后半句与前半句的结构关系是什么？

its指的是sound

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