在爆炸危险区域内的楼梯间，门斗的隔墙应采用耐火极限不低于（    ）h的防火隔墙，门采用甲级防火门并与楼梯间的门错位设置。

A、<p><span style="font-family: \'Microsoft YaHei\'; ">1.00</span></p>

B、<p><span style="font-family: \'Microsoft YaHei\'; ">1.50</span></p>

C、<p><span style="font-family: \'Microsoft YaHei\'; ">2.00</span></p>

D、<p><span style="font-family: \'Microsoft YaHei\'; ">3.00</span></p>

A、<p><span style="font-family: 'Microsoft YaHei'; ">1.00</span></p>

B、<p><span style="font-family: 'Microsoft YaHei'; ">1.50</span></p>

C、<p><span style="font-family: 'Microsoft YaHei'; ">2.00</span></p>

D、<p><span style="font-family: 'Microsoft YaHei'; ">3.00</span></p>