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标题: GWD-26-37 [打印本页]

作者: jmbnzhu 时间: 2008-8-13 03:41
标题: GWD-26-37

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, but I choose A.

作者: jmbnzhu 时间: 2008-8-13 18:25
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