业务体制改革的总体目标是建立多轨道、集约化、研究型和()业务。
A.准确性
B.精细化
C.开放式
参考答案:C
已知a、b互为相反数,c、d互为倒数,试求:﹣(a+b+cd)+(a+b)2008+(﹣cd)2007的值.
About ________ of the workers in that steel factory_______ young people.
A.third-fifths ; are
B.three-fifths ; are
C.three-fives ; is
D.three-fifth ; is