Because company websites which contain too much information are usually ignored by people, it is important to keep the information short and to the_____.
【单选题】利用基因工程技术生产羧酸酯酶 (CarE) 制剂,用于降解某种农药的残留,基本流程如图。下列叙述正确的是 A .过程 1 的反应体系中需要加入逆转录酶和核糖核苷酸 B .过程 2 需使用限制酶和 DNA 聚合酶,是基因工程的核心步骤 C .过程 3 需要使用 NaCl 溶液制备感受态的大肠杆菌细胞 D .过程 4 可利用 PCR 技术鉴定 CarE 基因是否成功导入受体细胞
【简答题】Whorf came to believe in a sort of linguistic determinism which, in its strongest form, states that language imprisons the mind, and that the grammatical patterns in a language can produce far-reachin...