故答案为Cloning farm animals for drug production.克隆农场动物用于药物生产。4.【答案】Although it's not likely to clone animals that became extinct a long time ago,species that became extinct more recently might be cloned by scientists.【解析】题干表达:使灭绝物种复活。根据倒数第三段提到的In the...
题目Animals can be reproduced by technology now; researchers can clone them. A clone is an exact copy of another animal or plant. Scientists have cloned a sheep which they have named Dolly. Researchers took genes from a ewe (母羊) and used them to create a copy (Dolly) o...
The primary measures of hygiene are clean water, control of helminth infections, shoes and probably some limited separation from farm animals.11 The major elements of these changes were achieved in London, Berlin, Munich, New York and Chicago by 1920 at the latest.45 In keeping with that, the...
C. not all the cloned animals can survive D. doctors can clone humans within two years 查看完整题目与答案 The boy has never heard any English songs (play) ___ on the guitar. 查看完整题目与答案 10() A.量化 B.自适应 C.差分 D.调制 A. ADPCM是一种常用的编码技术,其中“A”指...