Have you had supper? "Not yet. The meal_____." A: are being cooked B: is being cooked C: is cooked D: are cooked

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；

【单选题】---.“Howabout the dishes, Dear?” ---“The beef didn’t taste very good. It ______too long.” A. cooked B. had been cooked C. was cooked D. had cooked

〈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;

My mother ____ dinner when I got home. A: was cooking B: cooked C: has cooked D: cooks

— Where is Peter? — He ___________ dinner for his parents at home. A: cooks B: cooked C: has cooked D: is cooking

Most green vegetables, ____ for too long, will lose nutrition. A: if to be cooke B: if cooked C: if cooking D: if being cooked

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