单选题Where is the guest speaker from?AAmerica.BUK.CChina.
单选题
Where is the guest speaker from?
A
America.
B
UK.
C
China.
参考解析
解析：
录音明确提到The guest speaker is Professor Smith from the United States and…。
录音明确提到The guest speaker is Professor Smith from the United States and…。
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