异丙肾上腺素的药理作用包括()
A.松弛支气管平滑肌
B.收缩支气管黏膜血管
C.加快心率、加速传导
D.扩张骨骼肌血管和冠状血管
E.收缩骨骼肌血管和冠状血管
参考答案:A, C, D
The nurse is preparing a treatment plan for a client taking oral corticosteroids to control severe chronic asthm
a. Which statement indicates that the client understands his treatment planA. "I should take corticosteroids on an empty stomach. "B. "I need to take corticosteroids to help build up my immune system. "C. "I should stop taking corticosteroids if I haven’t had an asthma attack for 1 week. "D. "I’ll tell my other health care providers that I’m taking a corticosteroid. "
煤的组成成分中发热量最高的元素是什么?