单选题 Hypoxia is the result of which of these conditions?

A、 Insufficient oxygen reaching the brain.

B、 Excessive carbon dioxide in the bloodstream.

C、 Limited oxygen reaching the heart muscles.

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相关试题

单选题晕机病是由以下哪种因素引起的

A、控制平衡感觉的内耳前庭器官感受器兴奋性过高

B、影响平衡的大脑细胞兴奋性过高,这种兴奋性通常可凭经验来克服

C、飞机的运动使胃产生了酸性物质,这种物质使胃部收缩

单选题用氧时,快速作深呼吸可能会引起?

A、缺氧症

B、航空性中耳炎

C、换气过度

单选题在没有供氧设备的情况下使飞机处于太高的高度,由此引起的缺氧症可称之为?

A、贫血性缺氧症

B、循环性缺氧症

C、缺氧性缺氧症

单选题 A pilot is more subject to spatial disorientation when

A、ignoring or overcoming the sensations of muscles and inner ear

B、eyes are moved often in the process of cross-checking the flight instruments

C、body sensations are used to interpret flight attitudes

单选题人的脑力的恢复需要的睡眠是?

A、慢波睡眠

B、快波睡眠

单选题向东跨越5个时区，需要多长时间重建生物节律？

A、1天

B、2天

C、5天

D、10天

单选题 A pilot should not fly with a common cold. What drug cause side effects related to the common cold?

A、anti-histamines causing drowsiness 抗组织胺药

B、tranquilizers increase pilot fatigued

C、auribiotics causing diarrniea

单选题 The physiological for respiration is

A、The already concentration of carbon dioxide

B、The arterial 动脉 concentration of oxygen

C、The arterial concentration of carbon dioxide