题目内容

—How do you __ about the trip? /How do you _ the trip?—It was pretty exciting.

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从所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项，完成对话。A: Hi, Jane.Where did you go this summer vacation?B: 1with my friends.A: How didyou get there?B: 2.A: 3 ?B: It looksus about seven days. It was tiring.A: 4 ?B: Yeah. Thepeople there were so friendly and the scenery was very beautiful.

吡啶碱性强于吡咯的原因是:( )

A. 吡啶是六元环,吡咯是五元环
B. 吡啶N 原子上的SP2 轨道上有一未共用电子对
C. 吡啶的亲电取代反应活性比吡咯小得多。

从任何一个结点出发都能访问到所有结点的是（）链表。

若线性表采用顺序存储结构，每个元素占用 4 个存储单元，第一个元素的存储地址为 100,则第 12 个元素的存储地址是______。

A. 112
B. 144
C. 148
D. 412