Many rivers and lakes have been ______ by industrial waste.

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问题 Many rivers and lakes have been ______ by industrial waste.

选项 A、damaged
B、polluted
C、ruined
D、stained

答案B

解析 pollute vt.弄脏,污染(空气或水)。damage vt.毁坏,损害。ruin vt. 使毁灭,毁坏。stain vt.染污,染色,把……弄脏。
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