单项选择题
判断文献的类型:()Standard General Principles for Temperature Limits in the Rating of Electric Equipment and for the Evaluation of Electrical Insulation Page(s):0_1Digital Object Identifier :10.1109/IEEESTD.1986.81591.
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AU2010209650(A1)Key intermediates for the synthesis of ...
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根据题录,判断文献类型:()Albert T.Measuring Technology Maturity:Op...
根据题录,判断文献类型:()Albert T.Measuring Technology Maturity:Operationalizing Information from Patents,Scientific Publications,and the Web[M].2016.
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Odorous gases equal computer control problems .By Stanl...
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A.会议论文B.图书C.期刊D.报纸