(2013·高考湖南卷)Happiness and success often come to those________are good at recognizing their own strengths.

A．whom

B．who

C．what

D．which

以下何种技术是错误的（）

A.畅通呼吸道所采取姿势为压额头抬下巴

B.施救者以脸靠近病患胸部评估有否呼吸

C.施救者以脸靠近病患口鼻评估有否呼吸

D.施救者运用听、看、感觉评估病患有否呼吸

E.如怀疑患者颈部脊髓损伤，应使用双手推举下颌法来打开气道