题目内容

Which is not the tunnel structure?

A. circle structure
B. rectangular structure
C. horseshoe structure
D. steel structure

查看答案

搜索结果不匹配？点我反馈

更多问题

Many countries are using tunnel to provide spaces for human activities not include（）

A. storage
B. living
C. war
D. transportation

A construction method for tunnel is called NANM, its full name is （）

NATM construction process contains（）、（）、（）、（）

下列全身覆有明显蜡粉的是：

A. 菜缢管蚜
B. 桃蚜
C. 甘蓝蚜
D. 烟蚜