毛衣的价格比衬衣贵80%,毛衣的价格相当于衬衣价格的____%;T恤的价格比衬衣便宜5%,T恤的价格相当于衬衣价格的____%.
I often Linda the old woman with housework last year.
绿色植物光合作用的实质是( )