质疑头脑风暴法
参考答案:是组织专家对已形成的设想进行质疑。
— You've made a mistake and you've _____ the letter "e".
— Sorry, I'll be more careful next time.
[ ]
A. left out
B. left over
C. left
D. left for
设函数f(x)满足f(0)=1,
,以及
试证明:1≤A≤1+ln2.