单选题 Drunkenness was as much of an ______ to enlightenment(启蒙) as lack of education.

【正确答案】 A

【答案解析】obstacle障碍(物)，妨碍；attack攻击；insult侮辱；indifference冷漠。该句译文为“嗜酒与缺乏教育一样，是开化的一大障碍”。