问题
单项选择题
Most nurses are women, but in the higher ranks of the medical profession women are a________.
A．scarcity
B．minority
C．minimum
D．shortage
答案
参考答案：B
解析：词义辨析。A．scarcity缺乏，不足，罕见；B．minority少数，少数民族；C．minimum最小值；D．shortage不足，缺乏；因此选项B为答案。