在职申硕英语考试

解析：In recent years a new farm

来源:网考网在职申硕英语 所有评论

【单选题】

In recent years a new farming revolution has begun, one that involves the {{U}} (61) {{/U}} of life at a fundamental level--the gene. The study of genetics has {{U}} (62) {{/U}} a new industry called biotechnology.As the name suggests, It {{U}} (63) {{/U}} biology and modern technology through such techniques as genetic engineering. Some of the new biotech companies specialize in agriculture and are working feverishly to {{U}} (64) {{/U}} seeds that give a high yield, that {{U}} (65) {{/U}} diseases, drought and frost, and that reduce the need for {{U}} (66) {{/U}} chemicals. If such goals could be achieved, it would be most {{U}} (67) {{/U}}.But some have raised concerns about genetically engineered crops.
In nature, genetic diversity is created within certain {{U}} (68) {{/U}}.A、rose can be crossed with a different kind of rose, but a rose will never cross with a potato. Genetic engineering, {{U}} (69) {{/U}} usually involves taking genes from one species and inserting them into another {{U}} (70) {{/U}} to transfer a desired characteristiC、This could mean, for example, selecting a gene which leads to the production of a chemical with anti-freeze {{U}} (71) {{/U}} from an artic fish, and inserting it into a potato or strawberry to make it frost-resistant. {{U}} (72) {{/U}}, then, biotechnology allows humans to {{U}} (73) {{/U}} the genetic wails that separate species.
Like the green revolution, {{U}} (74) {{/U}} some call the gene revolution contributes to the problem of genetic uniformity--some say even more so {{U}} (75) {{/U}} geneticists can employ techniques such as cloning and {{U}} (76) {{/U}} culture (培养), processes that produce perfectly {{U}} (77) {{/U}} copies.Concerns about the erosion of biodiversity, therefore, remain. Genetically altered plants, however, raise new {{U}} (78) {{/U}}, such as the effects that they may have on us and the environment. "We are flying blindly into a new {{U}} (79) {{/U}} of agricultural biotechnology with high hopes, few constraints, and little idea of the potential {{U}} (80) {{/U}} " said science writer Jeremy Rifkin.
A．hatch
B．patent
C．duplicate
D．train

网考网参考答案：B
网考网解析：
将高产种子申请专利。A项意为“孵化”，不能用于种子，C项是“复制”，与题意不；符，D项是“培养、训练”。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>

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