An elephant is a quadruped.大象是四足动物.When the bull elephant desires sexual activity , he approaches the matriarch - led herd.当公象发情时, 接近母象群.Fossil hunters have unearthed the bones of an elephant believed to be 500,000 years...
Kinetic parameters of a cyclic amidase with maleimide as the substrate was assayed by HPLC method.采用高效液相色谱法(HPLC)分析并测定了环二酰胺酶水解马来酰亚胺反应的动力学参数.A novel enantioselective amidase screening system was developed and proved to be...