阿根廷国家农业综合科技研究所的科学家们日前宣布,他们已成功培育出一头能够产类似人奶的奶牛。
5.What is the passage mainly about?
A.The importance of genetic engineering.
B.Ways to improve mothers' milk.
C.A cloned cow to produce humanlike milk.
D.Advanced agricultural technology in Argentina.
答案:C 考查主旨大意。根据文章第一段“Scientists in Argentina have created the world's first cow with two human genes that will enable it to produce humanlike milk”可知,阿根廷的科学家们已成功培育出一头能够产类似人奶的奶牛。故选C项。
6.Which of the following can best replace “more closely resemble” in Paragraph 4?
A.have more varieties than
B.be more similar to
C.have more nutrition than
D.be more different from
答案:B 考查词义猜测。根据第四段的第二、三句可知,阿根廷的研究组称中国研究组仅放入了一个人类基因,而他们的研究包含了两个,这意味着产出的牛奶将和人奶更相似。故选B项。
7.What can be inferred from Cristina Kirchner's statements?
A.She was quite satisfied with the research done by the institute.
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