题目

函数的单调递增区间为( )A. B. C. D. 答案：【答案】A【解析】由解析式知函数图像为开口向下的抛物线,且对称轴为轴,故可得出其单调增区间.∵函数, ∴函数图像为开口向下的抛物线,且其对称轴为轴∴函数的单调增区间为.故选:A.They say your report doesn’t ______ the fact. But I don’t ______ them ______ this point. A. agree to; agree with; at                    B. agree on; agree to; on C. agree on; agree on; on                     D. agree with; agree with; on