Purpose To recognize the value of double helix CT in diagnosis of Chronic otitis mastoidea.目的:确定慢性化脓性中耳乳突炎的双螺旋CT扫描诊断价值.In order to represent Archimedes helix with control polygon, we construct Bernstein - like basis.为了用控...
苜蓿 、 苹果 、 洋白菜和洋葱都广泛种植.Alfalfa, apples, cabbages, and onions are widely grown.我们存了大量的洋白菜过冬.We have a large store of cabbages for the winter.本星期买胡萝卜和洋白菜最合算, 因货源充足,价格低廉.Best buys of the week are carrots and cabbages, which ...