2. 外语
  3. The incidence of this disease has been greatly reduced thanks to our health care program.

The incidence of this disease has been greatly reduced thanks to our health care program.

admin2005-11-28  46
问题 The incidence of this disease has been greatly reduced thanks to our health care program.
选项 A、seriousness
B、frequency of occurrence
C、mortality
D、cure rate
答案B
解析 本题中，incidence的意思是“发生(率)，影响；影响的方式[范围，程度]”。四个选项中，frequency of occurrence的意思是“发生频率”；seriousness的意思是“严肃，认真”；mortality的意思是“死亡率”；cure rate的意思是“治愈率”。只有B项符合题意。
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