单项选择题

Passage One
Questions 26 to 29 are based on the passage you have just heard.

A．In four or five years.
B．In one year.
C．In three or four years.
D．In 36 weeks.

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According to the 1st paragraph, experts have interests in ______ .

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It is a surprise that up to 43 teams came for this year’s race called the Grand Challenge.

Passage OneQuestions 26 to 29 are based on the passage you have just heard. 您的浏览器不支持 audio 元素。