• 登陆
  • 注册
  • SiteMap

正确答案网

  • 正确答案网
  • 医学
  • 国民教育
  • 财经
  • 驾考
  • 教师资格证
  • 考研
  • 公务员
  • 正确答案网
  • 国民教育
  • 英语
  • 高中英语
问题

The doctor said jokingly that his own infection of the virus _______ the discovery of a vaccine (疫苗)of the disease.

A:stood for
B:called for
C:paid for
D:contributed to
正确答案是:
同类题型

The research on the new flu virus vaccine ischallenging and demanding Who do you think can do the job —_______ my students have a try

Tony , don’t draw on the wall, it isn’t good behavior. —_____ .

(2013·咸阳二模)We should keep in mind that the earth is our only home and only by saving the environment________ourselves.

The teacher told his students that the earth _____round the sun.

______ returning home, she found a note _________ to the door, reading: “Call in later.”

  • 友情链接:
  • Office教程
  • 坚果云
  • markdown
  • IDM
  • listary中文网
  • 柿皮网
  • 坚果云扫描
  • Fences中文网
考试答案、作业答案,找答案就上正确答案网!
www.zhengquedaan.cn版权所有 ©2020-2025 沪ICP备2020036959号-5