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

解析句意为：健康状况欠佳与经济困难都是教育发展的障碍。restraint意为“抑制”；stain意为“染色、着色”；scarcity意为“缺少、不足”；bartier意为“障碍”,最符合题意。因此选D项。

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