钢筋混凝土现浇楼梯考虑到模板的支撑问题，楼梯井的宽度一般要求（ ）。 A. 大于60mm B. 不小于150m……

未分类题从1～9月来看，价格变化呈下降趋势的产品是( )。D.加工业产品

单项选择题Aristotle in The Poetics describes the purgative effects through pity and fear that tragedy has on its audience as __________.

未分类题2003至2007年全国税收总额为( )亿元。94142D.254142

未分类题In the third paragraph, 'potential customers' refers to people who ______.A.are likely to buy your productsB.are already important clients of your firmC.are not willing buy your productsD.are not interested in your products

未分类题The phrase 'on the road' in the last paragraph can be best replaced by ______.A.travellingB.relaxingC.playingD.sightseeing