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属于热射病机制的是()
A . A．机体散热绝对或相对不足
B . B．血钠降低
C . C．汗腺疲劳
D . D．体温调节中枢功能障碍
E . E．体温急剧增高
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热射病
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临床上热射病表现中常无（）
A . 大汗
B . 溶血
C . 昏迷
D . 高热
E . 肌肉抽搐
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热射病"三联症"是指（）
A . A.高热、无汗、意识障碍
B . B.高热、烦躁、嗜睡
C . C.高热、灼热、无汗
D . D.高热、疲乏、眩晕
E . E.高热、多汗、心动过速
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热射病的典型临床表现是（）
A . 高热
B . 大汗
C . 无汗
D . 意识障碍
E . 血压下降
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热射病“三联症”典型表现为（）
A . 高热、无汗、意识障碍
B . 高热、大汗、呕吐
C . 高热、痉挛、昏厥
D . 皮肤灼热、胸闷、心悸
E . 呼吸增快、痉挛、多汗
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中暑包括热射病和日射病。
A . 正确
B . 错误
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中暑可分为热射病和日射病两种类型。
A . 正确
B . 错误
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热射病特点是（）。
A、在高温环境中突然发病，体温高达40℃以上，最高可达42℃
B、疾病早期"无汗"
C、不伴有皮肤干热
D、无意识障碍表现
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热射病的典型表现是（）。
A . 高热、无汗、意识障碍
B . 高热、多汗、意识障碍
C . 高热、多汗、循环衰竭
D . 高热、无汗、呼吸衰竭
E . 高热、眩晕、肌肉痉挛
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下列不是日射病和热射病的治疗方法的是（）
A . 消除病因和加强护理
B . 降温疗法
C . 缓解心肺机能障碍
D . 防止肺水肿
E . 补充蛋白质等能量物质
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One of the differences between a two-stroke engine and a four-stroke engine is,（）
A . a two-stroke engine can’t work without cylinders
B . a two-stroke engine can’t work without pistons
C . a two-stroke engine can’t work without crankshafts
D . a two-stroke engine can’t work without a blower
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In the four-stroke engine, it takes （） to make one power stroke.
A . one propulsion
B . two propulsions
C . two revolutions
D . one revolutio
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A two-stroke/cycle diesel engine requires less starting air than a four-stroke/cycle diesel engine, of equal displacement, because the two-stroke/cycle diesel engine（）
A . has little or no internal friction
B . has a lower effective compression ratio
C . operates with scavenge air under a positive pressure
D . operates without energy absorbing intake and exhaust stroke
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中暑可分为日射病和热射病。
A . 正确
B . 错误
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热射病(heat stroke)
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Compared to four-stroke/cycle engines, two-stroke/cycle diesel engines have the disadvantage of （）
A . less even torque
B . higher cylinder head temperatures
C . fewer power strokes per revolution
D . greater weight/size requirement
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In a four-stroke/cycle diesel engine, after the completion of the power stroke, the piston will move（）
A . up and draw in a fresh air charge
B . down to burn off fuel
C . down to compress the fuel air charge
D . up and force out the exhaust gase
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The two strokes of a two-stroke/cycle diesel engine are （）
A . power and intake
B . intake and exhaust
C . exhaust and compression
D . compression and power
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Four strokes consist of suction, compression, （） and exhaust stroke.
A . combustion
B . condensation
C . charging
D . evaporatio
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In the suction stroke air is induced into the cylinder （）In the compression stroke the air is compressed.
A . by an fuel valve
B . through an inlet valve
C . with an exhaust valve
D . from an outlet valve
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How to first-aid people in heat stroke can be defined as informational process.
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Among the four strokes of a four-stroke diesel engine,suction and expansion strokes are the upward strokes.()
此题为判断题(对，错)。
