单项选择题

Questions 29 to 31 are based on the passage you have just heard.

A．It’s one half as much as 1976.
B．It’s twice as much as 1976.
C．It’s close to the same.
D．It’s two-thirds as much as 1976.

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单项选择题

单项选择题

Questions 29 to 31 are based on the passage you have just heard. 您的浏览器不支持 audio 元素。