单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．the bank.
B．the car park.
C．the lake.
D．the office.

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Both weather balloons and ocean buoys can collect information about the temperature.

Questions 11 to 18 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。