A client with myocardial infarction and ca
题型：单项选择题
问题：
A client with myocardial infarction and cardiogenic shock is placed in an intra-aortic balloon pump (IABP). If the device is functioning properly, the balloon inflates when the（）
A. triseupid valve is closed.
B. pulmonic valve is open.
C. aortic valve is closed.
D. mitral valve is closed.
-D
缺失，下颌前突，上唇较长、唇肌较松弛，余牙正常，可摘义齿修复。排牙时应选择下列哪类
关系（）