Britain's rarest breeding birds are under threat from fanatical and selfish egg collectors.英国最珍贵的种鸟正因为那些狂热而自私的鸟蛋收集者而面临着威胁。The rarest is type AB.最稀少的是AB型血.Monnet was that rarest of all prophets who put people at ease...
Average life expectancy went down from about 70 to 67.平均预期寿命从70岁左右降到了67岁。Three of the six have comfortably exceeded their normal life expectancy.6人中已经有3人轻松超过了正常的预期寿命。The average life expectancy was 40.平均期望寿命曾是40岁。...
组氨酸:是蛋白质中少有的一种碱性氨基酸.Histidine A basic amino acid formed only rarely in proteins.目的研究非小细胞肺癌(NSCLC) 中脆弱性组氨酸三联体(FHIT) 、 细胞周期素D1(cyclinD1) 、 细胞周期蛋白依赖激酶4(CDK4)的表达与NSCLC发生发展的关系.Objective To investigate the role of FHIT, cyclin...