单项选择题

Question 21 is based on the following news. At the end of the news item, you will be given 5 seconds to answer the questions.
Now, listen to the news.

A．Applications outnumber availability.
B．Insufficient trained personnel.
C．Uncertainty of the future market.
D．Lack of government support.

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单项选择题

Question 21 is based on the following news. At the end of the news item, you will be given 5 seconds to answer the questions.Now, listen to the news. 您的浏览器不支持 audio 元素。