Yangtze River flows at a width of up to 2km and an average depth of between 6 and 15m through a large plain with many lakes. Thi

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问题 Yangtze River flows at a width of up to 2km and an average depth of between 6 and 15m through a large plain with many lakes. This area is______to severe flooding and accumulation of river sediment.

选项 A、object
B、particular
C、subject
D、prone

答案C

解析 在给出的选项中:object“反对”;particular“特定的”;subject“易受……的”;prone“倾向于”。所以,正确答案是C。
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