单选题 Most nurses are women, but in the higher ranks of the medical profession women are in a ______.
[A] scarcity [B] minority [C] minimum [D] shortage

【正确答案】 B

【答案解析】in a minority为固定习语，意为“占少数”。scarcity缺乏，不足，与shortage同义。minimum最低限度。句意：大多数护士都是妇女，但在医务界高层中妇女只占少数。