The rivers flow through some of the world’s grimiest areas, picking up oil, lead and other toxic materials, as well as fertilize

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问题 The rivers flow through some of the world’s grimiest areas, picking up oil, lead and other toxic materials, as well as fertilizer residues.

选项 A、worldly
B、poisonous
C、wholesome
D、void

答案B

解析 句意:河流流经一些世界上最肮脏的地区,沿途携带了油状物、铅和其他有毒物质,还有化肥残渣。toxic(有毒的);poisonous(与toxic同义);worldly(世俗的);wholesome(卫生的,有益健康的);void(空的,无效的)。
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