In a plan to stop the erosion of East Coast beaches, the Army Corps of Engineers proposed building parallel to shore a breakwater of rocks that would rise six feet above the waterline and act as a buffer, so that it absorbs the energy of crashing waves and protecting the beaches.
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Aact as a buffer, so that it absorbs
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Bact like a buffer so as to absorb
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Cact as a buffer, absorbing
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Dacting as a buffer, absorbing
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Eacting like a buffer, absorb
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正确答案: C