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问题
选择题
设函数
g(x)=
e
x
,x≤0
lnx,x>0
则g(-1)=( )
A.1
B.-1
C.e
D.
1
e
答案
函数
g(x)=
e
x
,x≤0
lnx,x>0
,
∵-1<0,
∴g(-1)=e
-1
=
1
e
故选D.
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A. why
B. where
C. which
D. that
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