推平车上下坡时病人头部应在高处是因为
A．防止血压下降
B．避免呼吸不畅
C．减轻头部充血不适
D．预防坠车
E．有利于与病人交谈
参考答案：C
禁止在广播电台、电视台、报刊播放、刊登烟草制品广告。
School failure and social isolation can lead to early onset of depression in children and teens, and the trend is becoming increasingly common.
