Many manufacturers have policies to protect themselves against blackmailers.许多厂家都购买了保险，以防遭到敲诈。The blackmailers bled him for & 500.敲诈者向他强索500 镑.The blackmailers bled him for every penny he had.勒索者把他的钱榨得一乾二净....
The PNA molecules can routinely be labeled with biotin or various fluorophores.PNA分子可被生物素和各种荧光团常规标记.Methods Immunohistochemistry was performed by using avidin - biotin peroxidase complex procedure.方法采用链霉素 抗 生物素蛋白生物素过氧化物酶...