由于要缴纳多种的和沉重的捐税, 他们永远不能想望担任政治职务.Subjected to numerous and heavy taxes, they could never aspire to political office.这一现象的后果可能是多种的、复杂的.The effects of this phenomenon can really be manifold and complex.玛丽阿姨得的是另外一种癌症, 癌症有很多种的...
This introduces application of thin layer chromatograph, HPLC and NMR on separating and analysis of lipositol.并介绍了薄层色谱法 、 高效液相色谱法及核磁共振等方法在肌醇磷脂分离和分析中的应用....