Science and technology have in important ways contributed to the improvement of
题型：不详难度：来源：
Science and technology have in important ways contributed to the improvement of agricultural production. | A．contributed to | B．resulted from | C．carried off | D．handed over |
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答案
| A |
解析
| 四个选项分别表示导致、缘自、带走和上交，根据题意选A，科学技术应经在一些重要方面导致了农业生产的提高。 |
举一反三
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Science and technology have in important ways __________ the improvement of agricultural production. | A．contributed to | B．resulted from | C．carried off | D．handed over |
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