单项选择题

Questions 21 and 22 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.
What does the agreement require Vietnam to do

A．To release war captures.
B．To cut down tariffs.
C．To export less.
D．To remove trade barriers.

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单项选择题

单项选择题

Questions 21 and 22 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. What does the agreement require Vietnam to do 您的浏览器不支持 audio 元素。