A formal contract is signed which is renewable annually.正式签订了每年可续签的合同。Seven million doses of vaccine are annually given to British children.英国孩子每年要接种7百万剂疫苗。El Salvador produces 100,000 tons of refined copper annually.萨尔瓦...
我能闻到瓜桃熟透了的香甜味道。I could smell the honeyed ripeness of melons and peaches.韦斯特必须决定是否要出一张红桃。West had to decide whether to play a heart.红桃是主。Hearts are trumps....
另两个为胸腺嘧啶和胞嘧啶, 即称为嘧啶的单环结构.The other two, thymine and cytosine, are single ring structures called pyrimidines.嘌呤为嘧啶取代或嘧啶为嘌呤所取代,叫做颠换.The substitution of a purine for a pyrimidine, or vice versa is a transversion.本文研究氟脲嘧啶(5—...
Objective : To observe the pharmic effect of JiShi cholagogue chronic cholecystitis.目的: 通过动物实验观察姬氏利胆剂的治疗作用.Objective : To observe the therapeutic effect of cholagogue decoction in the treatment of chronic cholecystitis.目...