已知a 、b 互为相反数,cd 互为倒数,则a -cd +b=( )。 发布时间:2017-04-05 12:25 │ 来源:www.tikuol.com 题型:填空题 问题: 已知a 、b 互为相反数,cd 互为倒数,则a -cd +b=( )。
题型:填空题 These football players were not specially________until they joined our club.[ ]A.educated B.exercisedC.practised D.trained 查看答案