A-A+
Stress can affect the respiratory system by __
问题详情
Stress can affect the respiratory system by __. A．decreasing the pulse rate B．a loss of carbon dioxide C．causing breathing problems D．causing asthma
参考答案
正确答案：C
第二段中提到，压力会影响到呼吸(respiratory)系统，会引起哮喘症(asthma)，使人呼吸加快。
