单项选择题

Questions 13 to 15 are based on the conversation you have just heard.

A. Because someone spilled water on it.
B. Because it was made of low quality metal.
C. Because someone lost it.
D. Because the standard for measuring had changed.

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单项选择题

A. There are neither rivers nor streams.B. There is no grass all the year round.C. It is mainly bare rock with little grass.D. There are a few streams and rivers.

A. There are neither rivers nor streams.
B. There is no grass all the year round.
C. It is mainly bare rock with little grass.
D. There are a few streams and rivers.

单项选择题

Questions 13 to 15 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。

Questions 13 to 15 are based on the conversation you have just heard.