题目内容
在室内正常环境中使用的梁，其混凝土强度等级为C25，其混凝土保护层厚度为（ ）。
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2. Theme-relatedRead the passage carefully until you have got its main idea, and then select one appropriateword for each gap from the box following the passage.Imagine how you would fill in 24 hours a day,every day,if you ____(1) have to work. There you go-off to the beach in summer,the movies in winter,watch TV on rainy days,go skating or horse riding, ____ (2)a lot of books or magazines,sleep..
But would you? Where would the money____(3) from for your bus fares,the movies,the TV set and the electricity,the skates and books?
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