2,10,30,68,130,222,()
A. 261
B. 290
C. 324
D. 350
A.supportedB.replacedC.changedD.switched
A. supported
B. replaced
C. changed
D. switched
A.strongerB.betterC.moreD.longer
A. stronger
B. better
C. more
D. longer
玩具店新进一批成本为40元的玩具,按40%的利润定价出售,售出80%以后,剩下的玩具打折扣,结果获得的利润是原计划的86%,剩下的玩具出售时按定价打了几折?
A. 九五折
B. 九折
C. 八五折
D. 八折