they __this estimate ___the figures for the last three years?A,are based;withB,based;according toC,are based;onD,based;upon 答案是D,请说明一下,谢谢

they __this estimate ___the figures for the last three years?A,are based;withB,based;according toC,are based;onD,based;upon 答案是D,请说明一下,谢谢 estimate是什么意思 estimate是什么意思 what __this white one? estimate of coefficient是什么意思 estimate the value median estimate是什么意思 急! estimate是什么意思 estimate与budget区别? maximum likelihood estimate是什么意思 estimate revenue是什么意思 shipping estimate是什么意思 accounting estimate是什么意思 maximum likelihood estimate是什么意思 As they had never __such a problem __this,they didn't know...A met,like B met with,as请问为什么had never met 还要加with?as this 又是什么用法?请问,meet 和 meet with用法如何区分 一道英语语法试题we have received your estimate for the alterations you propose,but have decided that_____would be too high.A.it B.they C.we D.you time remaining estimate indicator是什么意思 estimate,evaluate,assess的区别?