单项选择题

[A] From the western United States. [C] From only the east coast of the American Continent.
[B] From all parts of the country. [D] From San Francisco Bay.

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单项选择题

单项选择题

[A] From the western United States. [C] From only the east coast of the American Continent. [B] From all parts of the country. [D] From San Francisco Bay. 您的浏览器不支持 audio 元素。