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 中等
  • 浏览 322

When the H1N1 virus____ at first in Mexico, no one had the least idea that it would spread so rapidly throughout the world.

A.broke off B.broke down C.broke out D.broke away
登录免费查看答案和解析

WhentheH1N1virusatfirstinMexic