首页 / 高中英语 / 试题详细
  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 2091

A public health campaign _____ the number of heart disease deaths by 80 percent over the past three decades.

A.had reduced B.had been reduced
C.has reduced D.has been reduced
登录免费查看答案和解析
相关知识点

Apublichealthcampaignthenumber