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题库 / OG2017V-SC-288
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.
prevented from dissipating its acoustic energy as a result of
prevented from having its acoustic energy dissipated by
its acoustic energy prevented from dissipating by
its acoustic energy prevented from being dissipated as a result of
preventing its acoustic energy from dissipating by
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sound不能prevent它声能的分散E out，也不是被prevent from声能分散的宾语，AB out
dissipate的主语也不是sound，因此用了ing无主语的形式
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