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【单选题】

On February 4,1974, the Capital Building, the newest building ha Sao Paulo, was destroyed in a big fire. The fire was started on the 11th floor. Soon the whole floor was on fare. There were 25 floors in the building. As it had no fire escapes (消防梯), 300 people were trapped (围困) in the fire and they could not escape. Many of them climbed to the roof of the building. The helicopters (直升机) came, but there was such thick smoke that the helicopters could not get close enough. At last about 70 people were saved. Down in the street, the firemen could not get close to the building because too many people were watching the fire. The terrible fire lasted about 4 hours and killed over 220 people.
220 people were killed because they ran by the fire escapes.

A.
Right.
B.
Wrong.
C.
Doesn’t say.
题目标签:消防梯直升机
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参考解析:
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【单选题】直升机的螺旋桨类型不包括()。

A.
双旋翼纵列
B.
双旋翼交叉
C.
双旋翼共轴
D.
双旋翼互通

【单选题】多数直升机采用 。

A.
浮筒式起落架
B.
轮式起落架
C.
滑轨弹射器
D.
滑橇式起落架

【单选题】徒手攀登消防梯时,()离开梯蹬。

A.
双脚不得同时
B.
双手不得同时
C.
双手可以同时
D.
手脚可以同时

【多选题】直升机的飞行操纵有 ___ ___。

A.
机头转向操纵
B.
总距操纵
C.
周期性桨距操纵
D.
襟翼操纵

【单选题】以下()不是直升机的旋桨类型。

A.
三旋翼横列
B.
单旋翼
C.
双旋翼共轴
D.
双旋翼交叉
相关题目:
【单选题】直升机的螺旋桨类型不包括()。
A.
双旋翼纵列
B.
双旋翼交叉
C.
双旋翼共轴
D.
双旋翼互通
【单选题】多数直升机采用 。
A.
浮筒式起落架
B.
轮式起落架
C.
滑轨弹射器
D.
滑橇式起落架
【单选题】徒手攀登消防梯时,()离开梯蹬。
A.
双脚不得同时
B.
双手不得同时
C.
双手可以同时
D.
手脚可以同时
【多选题】直升机的飞行操纵有 ___ ___。
A.
机头转向操纵
B.
总距操纵
C.
周期性桨距操纵
D.
襟翼操纵
【单选题】以下()不是直升机的旋桨类型。
A.
三旋翼横列
B.
单旋翼
C.
双旋翼共轴
D.
双旋翼交叉