A.playwright
B.essayist
C.poet
D.novelist
[单选题]Walt Whitman was a(n)( )A.playwrightB.essayistC.poetD.novelist
[名词解释] 绵亘蜿蜒mián ɡèn wān yán
[名词解释] 忠心耿耿 zhōnɡ xīn ɡénɡ ɡěnɡ
[名词解释] 嘟嘟囔囔dū dū nānɡ nānɡ
[名词解释] 宋襄公Sònɡ xiānɡ ɡōnɡ
[名词解释] 凝听nínɡ tīnɡ
[单选题]已知N点有限长序列x(n)=δ((n+m))NRN(n),则N点DFT[x(n)]=()。A . ['NB . 1C . WD . W