234. (2024·黑龙江)设f(x)=}e^(1)/(x)+1,x0,则a,b分别为( ).A. a=0,b=1B. a=0,b=-1C. a=1,b=1D. a=1,b=0

234. (2024·黑龙江)设$f(x)=\begin{cases}e^{\frac{1}{x}}+1,x<0,\\a,x=0,且f(x)在x=0处连续,\\b+\cos x,x>0,\end{cases}$则a,b分别为( ).

A. a=0,b=1

B. a=0,b=-1

C. a=1,b=1

D. a=1,b=0