单选题 Applied research, ______ to solve specific practical problems, has an immediate attractiveness because the results can be seen and enjoyed.
A. obtained B. undertaken
C. attained D. accomplished

【正确答案】 B
【答案解析】undertake“承担；从事”；obtain“获得；得到”；attain“达到；获得”；accomplish“履行；(圆满)完成”，从动宾语义搭配来看，只能选undertaken。