| In recent years a new farming
revolution has begun, one that involves the{{U}} (21) {{/U}}of life at a
fundamental level — the gene. The study of genetics has{{U}} (22)
{{/U}}a new industry called biotechnology. As the name suggests, it{{U}}
(23) {{/U}}biology and modem technology through such techniques as
genetic engineering. Some of the new biotech companies specialize{{U}} (24)
{{/U}}agriculture and are working feverishly to duplicate seeds that give a
high yield, that{{U}} (25) {{/U}}diseases, drought and frost, and that
reduce the need for{{U}} (26) {{/U}}chemicals.{{U}} (27)
{{/U}}such goals could be achieved, it would be most beneficial. But some have
raised concerns about genetically engineered crops. In nature, genetic diversity is created within certain space. A rose{{U}} (28) {{/U}}be crossed with a different ki A. remain B. remains C. is remaining D. remained 我来回答: 提交
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