Methods From Sep. 2003 to Apr .2006,5 patients underwent laparoscopic and colonoscopic left hemi - colectomy.方法2003年9月~2006年4月应用腹腔镜结肠镜双镜联合技术施行左半结肠切除术5例.Aim To explore the subtotal colectomy for the obstructing carcinoma ...
Certain proteins help copy nucleic acids by fashioning complementary strands that carry matching nucleotides.Proteins携带配对的nucleotide参与了nucleicacids的 精确配对复制是明确的.Deoxyribose A pentose ( five - carbon ) sugar that is a comp...
The travel service can help you to make onward reservations.旅行社可帮您办理行程各阶段的票.The bus continued onward.公共汽车继续往前开。From 1942 onward I worked on the first anti - midget - submarine detection systems.从1942年往后,我研究了头一批 反 小型潜艇的探测...