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【单选题】

消防头盔按外形可分为（ ）和半盔式两种

A.
覆盖式
B.
鸭舌式
C.
全盔式
D.
封闭式
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题目标签：头盔消防头盔可分
参考答案：
参考解析：
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A
B.
B
C.
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【单选题】Questions 36～40 are based on the following passage.Richard Satava, program manager for advanced medical technologies, has been a driving force in bringing virtual reality to medicine, where computers ...
A.
will enable surgeons to be physically present on every battlefield
B.
can raise the spirits of soldiers wounded on the battlefield
C.
will greatly improve medical conditions on the battlefield
D.
can shorten the time for operations on soldiers wounded on the battlefield
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【简答题】灭火防护：消防头盔、消防员灭火防护服、消防手套、 消防安全腰带、消防员灭火防护靴、正压式空气呼吸器、佩 戴式防爆照明灯、消防员呼救器、应急逃生自救安全绳、 、 等
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A.
A
B.
B
C.
C
D.
D
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A.
酸性皂苷
B.
中性皂苷
C.
甾体皂苷
D.
五环三萜皂苷
E.
四环三萜皂苷
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【单选题】消防头盔面罩具有良好的( )。
A.
防热性
B.
透光率
C.
防毒性
D.
防烟性
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【单选题】消防头盔电绝缘性能交流电2200V，耐压（），帽壳泄漏电流不超过3mA。
A.
1min
B.
2min
C.
3min
D.
4mi
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