问题
判断题
锅炉应每年进行一次停炉做外部检查；每六年进行一次水压试验。
答案
参考答案：对
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锅炉应每年进行一次停炉做外部检查；每六年进行一次水压试验。
参考答案：对
Questions 23-30
· You will hear people from the National Food Council complaining to retailers about the high prices they are charging for food products and household goods. They complain that the shops have marked up wholesale prices far too much.
· For each question (23-30), mark one letter (A, B or C) for the correct answer.
· After you have listened once, replay the recording.
The National Food Council has studied A. the reason for selling certain food. B. the supply and demand of certain kinds of food. C. the effect of price increases.