正确答案: D
点(1,2)是拐点
题目:函数y-=ƒ(x)满足ƒ(1)=2ƒ″(1)=0,且当x<1时,ƒ″(x)<0;当x>1时,ƒ″(x)>0,则有( ).
解析:利用拐点的定义来确定选项.需注意的是:拐点是曲线上的点,应该是(1,2),而不是x0=1.
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学习资料的答案和解析:
[单选题]What the monitor said at the class meeting ________ quite all right.
sounded
[单选题]I wonder_______ we could have a talk after the meeting,
if