在机组氧气面罩已收放好时，瞬时按压”RESET TEST”手柄有什么

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问题单项选择题

在机组氧气面罩已收放好时，瞬时按压”RESET TEST”手柄有什么作用？（）

A.切断氧气气流

B.使氧气气流保持供到调节器

C.使氧气流量窗的黄色十字保持显示

D.瞬时地启动氧气气流以测试调节器

答案

参考答案：B

选择题

在人造卫星上可成功完成的实验是（　　）

A．单摆测重力加速度

B．用密度计测液体的密度

C．用天平称物体的质量

D．用弹簧测力计测量拉力

单项选择题

When completing an assessment of a healthy adolescent client, which of the following would be most appropriate

A．Obtain a detailed account of the adolescent's prenatal and early developmental history.

B．Discuss sexual preferences and behaviors with the parents present for legal reasons.

C．Discuss the client's smoking with parents present in the room.

D．Assess the adolescent in private; gather additional information from the parents.