Applied research, ______to solve specific practical problems, has an immediate attractiveness because the results can be seen an

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问题 Applied research, ______to solve specific practical problems, has an immediate attractiveness because the results can be seen and enjoyed.

选项 A、formulated
B、undertaken
C、attained
D、accomplished

答案B

解析四个选项的意思分别是：formulate用公式表示，明确地表达；undertake承担，担任，许诺；attain达到，获得；accomplish完成，达到，实现。句意是，应用研究，着手解决具体实际问题，有一个直接的吸引力，因为结果可以看到和享受。

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