赞题库-背景图
单项选择题

Question 28 to 29 are based on the follwing news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news. What’s the news item mainly about

A.How Ebola spreads.
B.Outbreaks of Ebola in Africa.
C.How to stop the transmission of Ebola.
D.The number of people who infected Ebola.