题目

-3 的相反数是A. -3 B. 3 C. –(+3) D. +(-3) 答案：【答案】B【解析】根据只有符号不同的两个数互为相反数进行求解即可得答案.-3与3只有符号不同，所以-3的相反数是3，故选B.Children are ______ to meet with setbacks (挫折) as they grow up, so their parents don’t have to worry about it.A.possibleB.dueC.necessaryD.bound