A、the complexity of one’s theory
B、the generality of one’s theory
C、the abstraction of one’s theory
D、the specificity of one’s theory
第1题
第7题
连续信号,其中分别为300Hz,、350Hz、1300Hz。若用Hz对信号进行采样得x[k],利用长度为N的矩形窗、 L=2048 点的FFT的MATAB程序分析其频谱,谱峰分布在 附近.
A、307,1741,358,1690,717,1331
B、307,358,717
C、307,1741,358,1690
D、307,1741,358,1690,1331
第9题
A、people like Descartes are correct when they search for absolute certainty and clarity as the criteria for truth
B、it is possible to put geometry and rationalist thinking as the basis of knowledge
C、we may seek “absolute knowledge”
D、the realm of knowledge manifests itself in its diversity and richness
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