The ______ of sediment in the river caused concern among environmentalists and industrialists alike; the water levels in the riv

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问题 The ______ of sediment in the river caused concern among environmentalists and industrialists alike; the water levels in the river were being reduced almost daily.

选项 A、accretion
B、disposal
C、catalyst
D、alienation
E、ethnology

答案A

解析
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