某住宅楼每层公共部位建筑面积为320m2,则该住宅楼每层应配置()的手提式灭火器。
A.2具1A
B.3具1A
C.2具1B
D.3具1B
参考答案:B
You don’t want to visit any other mountain if you have seen wu yue, but you won’t wish to see even wu yue_____________ returning from Mount Huangshan.
A.about
B.before
C.since
D.after
高压汞灯要()安装,否则容易自灭。
A、水平
B、垂直
C、45o倾斜
D、任意