题目：
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.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：癫痫与眩晕的鉴别要点，
-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（）