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【多选题】

消防头盔由帽壳、( )等主要部件组成。

A.
面罩
B.
拆卸装置
C.
披肩
D.
下劾带
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题目标签：头盔组成消防头盔
参考答案：
参考解析：
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【单选题】Some people think of life as a game. There are similarities between life and games;both can be played, both have rules, and both turn out winners and losers. There are differences___56___the two, howe...
A.
A
B.
B
C.
C
D.
D
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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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【单选题】消防头盔头盔在260℃±5℃环境中放置5min后，帽壳后沿变形下垂不超过（）mm。
A.
22.0
B.
33.0
C.
40.0
D.
11.0
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【单选题】Some people think of life as a game. There are similarities between life and games;both can be played, both have rules, and both turn out winners and losers. There are differences___56___the two, howe...
A.
A
B.
B
C.
C
D.
D
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【单选题】下列是一组有规律的图案，第1个图案由4个基础图形组成，第2个图案由7个基础图形组成，第3个图形由10个基础图形组成，第5个图形中基础图形的个数为（ ）
A.
13
B.
14
C.
15
D.
16
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【单选题】朱砂安神丸的组成药物中不含
A.
朱砂
B.
当归
C.
茯神
D.
黄连
E.
生地黄
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【简答题】摩托车头盔
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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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