双链表的每个节点包括两个指针域。其中rlink指向节点的后继，llink指向节点的前驱。如果要在p所指节点后插入q所指的新节点，下面哪一个操作序列是正确的

A．p↑.rlink↑.llink: =q; p↑.rlink: =q; q↑.llink: =p; q↑.rlink: =p↑.rlink;

B．p↑.llink↑.rlink: =q; p↑.llink: =q; q↑.rlink: =p; q↑.llink: =p↑.llink;

C．q↑.llink: =p; q↑.rlink: =p↑.rlink; p↑.rlink↑.llink: =q; p↑.rlink: =q↑;

D．q↑.rlink: =p; q↑.llink: =p↑.llink; p↑.llink↑.rlink: =q; p↑.llink: =q;

下列有关说法不正确的是（　　）

A．ClO₂可以做杀菌消毒剂来进行环境杀菌消毒

B．食品保鲜膜、一次性食品袋的主要成分是聚乙烯

C．高浓度的放射性碘-131和放射性氡-219在被吸入人体后会对健康造成恶劣影响

D．绿色化学的核心是应用化学原理对环境污染进行治理