The majority of nurses are women, but in the higher ranks of the medical profession women are in a ______.
 
【正确答案】 A
【答案解析】 句意为女性在护士职业中占很大比例,但在医疗行业中担任高职位的女性的比例却较低。in a minority“少数的”,符合句意,故本题选A。