Poor health and lack of money may both be to educational progress roadblocks.

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问题 Poor health and lack of money may both be to educational progress roadblocks.

选项 A、restraints
B、stains
C、scarcities
D、barriers

答案D

解析 本句意思是“健康状况欠佳与经济困难都是接受教育的障碍。”restraint“抑制”,例如,He is a man always speaking with restraint.他是个说话拘谨的人。stain“染色,着色”,如:There’s an ink stain on your shirt.你的衬衫上有一个墨水渍。scarcity“缺少,不足”,如:The scarcity of fruit was caused by the drought.水果供不应求是由于干旱造成的。barrier“障碍”,最符合题意,例如,Heavy duties on imports and exports are a barrier to international trade.进出口的高关税是国际贸易的障碍。
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