单项选择题

Questions 29 and 30 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions.
Now, listen to the news.
Many deaths during childbirth could be prevented by the following methods EXCEPT

A．by passing virus to the babies.
B．by using medicines.
C．by improving health condition.
D．by vaccine inoculation.

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单项选择题

单项选择题

Questions 29 and 30 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news. Many deaths during childbirth could be prevented by the following methods EXCEPT 您的浏览器不支持 audio 元素。