问题
单项选择题
Because this area has a high rate of crime and unemployment, there are only people moving out.
A. incentive
B. incident
C. incidence
D. initiative
答案
参考答案:C
解析: 词义辨析
rate几率,比率,速度,费用;而B.incident事件,事变;C.incidence发生,影响(方式),影响范围,影响程度,发生率;initiative主动性;因此C为答案。