题目内容
(请给出正确答案)
[单选题]
He is ______ of a musician.
A.anybody
B.anyone
C.something
D.somebody
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A.anybody
B.anyone
C.something
D.somebody
A.μ-1.645σ,μ+1.645σ)
B.μ-1.96σ,μ+1.96σ)
C.μ-2.58σ,μ+2.58σ)
D.-∞,μ+σ)
E.-∞,μ-σ)
A.μ1≠μ2
B.μ1=μ2
C.π1=π2
D.π1≠π2
E.B=C