A-A+
The incidence of this disease has been greatly
问题详情
The incidence of this disease has been greatly reduced thanks to our health care program.
A．seriousness
B．frequency of occurrence
C．mortality
D．cure rate
参考答案
正确答案：B
解析：seriousness严肃，认真；frequency of occurrence发生频率；morality死亡率；cure rate治愈率。
