题目内容

试题5
某系统总体结构图如下图所示：
该系统总体结构图的深度为（）

A. 7 B．6 C．3 D．2

查看答案

搜索结果不匹配？点我反馈

更多问题

[ A] do it
[ B] watch them
[ C] stop it
[ D] catch them

简述美国商业广播的发展。

What does the underlined word" they" (line 3 , Para. 3) refer to？
[ A] Rare books.
[ B ] Library users. .
[ C] Book owners.
[ D] Library conditions.

[ A] hated
[ B ] enjoyed
[ C] cared
[ D] bothered