英译中:The average value of (a-b) +(b-c) over all possibleThe average value of (a-b) +(b-c) over all possible arrangement (a,b,c) of the three numbers (1,4,7) is ____.

above the average and below the average. beyond average还是beyond the average? take the average average man in the average average average average AVERAGE 英语翻译the weight average molecular weightthe number average molecular weight an average of 和the average of的区别 the average of和 a average of 有区别吗 valu for money on average、on the average和on an average有何区别 最好举几个例子 On the average中的the能否省略? what is the average salary in china beyond the reach of those with average average man in the street 意思?