【单选题】Which of the following is incorrect? A. Tidal breathing is alsocalled cheyne-stokes respiration. B. Cheyne-stokes respirationwaxes and wanes cyclically so that periods of deep breathing alternate withperiods of apnea (no breathing). . C. Intermittent breathing ischaracterized by unpredictable irregularity. Breaths may be shallow or deep,and stop for short periods. D. Intermittent breathing is less severe than the tidal breathing

breathing rate 译成：

He took a long slow breath, inhalingdeeply. A: breathing in B: breathing out C: vomiting D: swallowing

r_____________ a. connected with breathing

They walked through the forest breathing the ________ of pines.

Relax ____ possible and keep breathing steadily

Sign(s) of respiratory arrest requiring artificial respiration is(are)（）. A: vomiting B: blue color and lack of breathing C: irregular breathing D: unconsciousne

心肺复苏（CPR）程序的C—A—B代表的具体内容是什么 A: 胸部按压（C，compression） B: 开放气道（A，airway） 人工呼吸（B，breathing） C: 开放气道（B，breathing） D: 人工呼吸（B，breathing）

Deep breathing and relaxation techniques are beneficial_______ you.( )

Breathing such polluted air is the _______ of smoking ten cigarettes a day.