31. Attention must be paid to ______ science and technology..A.developB.developingC.developmentD.Dev

题目简介

31. Attention must be paid to ______ science and technology..A.developB.developingC.developmentD.Dev

题目详情


31. Attention must be paid to ______ science and technology..
A.developB.developingC.developmentD.Developed
题型:单选题难度:偏易来源:不详

答案

B

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