搜题请搜索小程序“爱下问搜题”
问题 单项选择题

《高层民用建筑设计防火规范》规定，消防增压用的气压水罐的调节水容量宜为（）（消火栓系统和自动喷水灭火系统共用）

A.450L

B.300L

C.200L

D.150L

答案

参考答案：A

单项选择题

When you open a file or run a program in a computer, a window appears on the desktop of your computer. The (67) of the window indicates which program you are currently working in arid its color will become blue if a window is active. When you click on The (68) , the window disappears and appears as a button on the taskbar. Clicking on a button in (69) will invoke a specific command.

A．menu bar

B．tool bar

C．scroll bar

D．status bar
查看答案
问答题 简答题

简述表象训练的作用。
查看答案