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【单选题】
用if语句表示如下分段函数f(x),下面不正确的程序是( ) f(x)= 2x+1 x≥1 3x/(x-1) x<1A.
if(x>=1):f=2*x+1 f=3*x/(x-1)
B.
if(x>=1):f=2*x+1 if(x<1):f=3*x/(x-1)
C.
f=3*x/(x-1) if(x>=1):f=2*x+1
D.
if(x<1):f=3*x/(x-1) else:f=2*x+1
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