在双向链表中删除指针p所指的结点(pre和next，是结点的指针域，pre指向结点的前驱，next指向结点的后继)，则需要执行( )。 A: p↑．next：=p↑．pre；p↑．pre：=p； B: p↑．next↑．pre：=p↑．pre；p↑．pre↑．next：=p； C: p↑．pre：=p↑．next；p↑．next=p↑．pre； D: p↑．pre↑．next：=p↑．next；p↑．next↑．pre：=p↑．pre；

〈center〉…〈/center〉是 标记 而〈pre〉…〈/pre〉是 标记。

在循环双链表的p所指结点之后插入s结点的操作是（ ） A: p->next=s; s->pre=p; p->next->pre=s; s->next=p->next; B: p->next=s; p->next->pre=s; s->pre=p; s->next=p->next; C: s->pre=p; s->next=p->next; p->next->pre=s; p->next=s; D: s->pre=p; s->next=p->next; p->next=s; p->next->pre=s;

在循环双链表的p所指结点之后插入s结点的操作是（ ） A: p->next=s; s->pre=p; p->next->pre=s; s->next=p->next; B: p->next=s; p->next->pre=s; s->pre=p; s->next=p->next; C: s->pre=p; s->next=p->next; p->next->pre=s; p->next=s; D: s->pre=p; s->next=p->next; p->next=s; p->next->pre=s;

On a production possibilities frontier, production is efficient if the production point is

智慧职教: <pre>关于嗜酸性粒细胞叙述，错误的是</pre><p></p>

In the green supply chain, the pre-production content is ( ). A: green design B: green packaging C: green materials D: green services

________ is a type of technology that centers on large-batch production and requires moderate levels of complexity and sophistication. A: Unit production B: Mass production C: Process production D: Service production

当PRE=0时意味着两变量之间无关，PRE=1时意味着两变量之间完全相关。（ ）

An organization has found that there is a linear relationship between production volume and production costs.It has found that a production volume of 800 units corresponds to production of $10,000 and that a production volume of 1,000 units corresponds to production costs of $12,000.What are the production costs for a production volume of 2,000 units? A: $12,000 B: $20,000 C: $22,000 D: $32,000