A story showing people’s generosity should be emailed to the editor at .
A：juliet@sws.com
B：susan@sws.com
C：Audrey@sws.com
D：nanjc@sws.com
完整的青苹果果实可以保存很长时间，而破损的苹果很快会腐烂，这说明表皮是____组织，具有____功能．
