颊窝毒蛇的毒牙是长的空心管子.The fangs of pit vipers are long, hollow tubes.只有四分之一的蛇具有毒液和毒牙.Venom and fangs are found in only a quarter of all known snakes.在蛇的进化史上,毒牙的出现是新的进步.A more recent advance in the evolutionary story of snakes i...
摘要采用 反相 高效液相色谱法测定不同生境半夏和炮制半夏中鸟嘌呤核苷的含量.Guanosine contents of Pinellia Rhizoma in the different habitats and the processed were determined by RP - HPLC.从 水溶性 成分鸟嘌呤核苷的含量看,种植半夏质量并不比野生半夏质量差;半夏在炮制过程中水溶性成分有所损失.The water - solub...
The audience showed its approval by cheering loudly.观众高声喝彩表示赞许。The bell was heard clanging loudly through the vast gloomy mansion.响亮的铃声叮叮当当传遍了阴森的大公馆.The brazen woman laughed loudly at the judge who sentenced her.那无耻的女子冲着...
As the years passed he felt trapped by certain realities of marriage...随着岁月的流逝,他觉得受困于婚姻的某些现实问题。...the realities of life under a brutal dictatorship...残暴的独裁统治下的生活现实...the mundane realities of life.平淡的现实生活Authors are famou...