CIE1931系统中表示光谱刺激值的符号是( )。
A: r(λ) g(λ) b(λ)
B:
C: R G B
D: R(λ) G(λ) B(λ)
A: r(λ) g(λ) b(λ)
B:
C: R G B
D: R(λ) G(λ) B(λ)
举一反三
- 反应H2(g)+Br2(g)→2HBr(g)的△r<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201911/36a0fd09e6604b94ad1f370b77809a94.png" />与反应H2(g)+Br2(l)→2HBr(g)的△r<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/201911/a8cc81df7b6048099c867255df24f484.png" />相同。
- 考虑AR(2)模型<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202105/9c19d336a086430cab947cf3a40c8047.png" />,则AR特征方程的根为( )。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202105/b8d42e894377426eaca4f3a382c0569c.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202105/cb2410db797c4dc5870eb9ab1dfae59e.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202105/505155f9e5654d3294291a0f104fd54f.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202105/ff900163e913414384b61dbd55a0c36e.png" />
- CIE1931系统中表示光谱刺激值的符号是( )。 未知类型:{'options': ['r(λ) g(λ) b(λ)', '', 'R G B', 'R(λ) G(λ) B(λ)'], 'type': 102}
- 已知f(k)的z变换<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202105/fcb29424b0f74f9d8bf5e13ec738f383.png" />,F(z)的收敛域为下面哪一项时,f(k)为因果序列 ( )。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202105/a75ad7c5eb8849f6a24916fc871c1739.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202105/3e62806a63e74e78bb29212d2a5bef0a.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202105/25250b041bec4d5093675240862554e4.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202105/2eae229138be4af5a084d0996e2d57d2.png" />
- 在<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202104/eb254aec548342c5bb15b15aae65aaf6.png" />f和声小调中,构成属和弦的三个音是( ) A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202104/eb254aec548342c5bb15b15aae65aaf6.png" />C,E,G B: C,E,G C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202104/eb254aec548342c5bb15b15aae65aaf6.png" />C,E,<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202104/eb254aec548342c5bb15b15aae65aaf6.png" />G D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202104/eb254aec548342c5bb15b15aae65aaf6.png" />C,<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202104/eb254aec548342c5bb15b15aae65aaf6.png" />E,<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202104/eb254aec548342c5bb15b15aae65aaf6.png" />G