(单选题)9: GB3469-85《文献类型与文献载体代码》的规定以单字母方式标识各种参考文献类型,下面这条文献属于哪种文献类型?()Meow D.Mixed-type optical fiber current sensor[C] , Proceedings of SPIE, V.1572, p497-507, 1991
A: 图书
B: 会议文献
C: 专利文献
D: 学位论文
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