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Questions 11—13 are based on the passage you have just heard. You have 15 seconds to read Questions 11—13 What measure was taken against floods in London in the 1980s

A．A flood wall was built.
B．Rescue teams were formed.
C．An Mann system was set up.
D．50 underground stations were made waterproof.

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单项选择题

单项选择题

Questions 11—13 are based on the passage you have just heard. You have 15 seconds to read Questions 11—13 What measure was taken against floods in London in the 1980s 您的浏览器不支持 audio 元素。