A. 形成艾森曼格综合征,患儿呈现青紫并逐渐加重 B. 胸骨左缘第3~4肋间粗糙全收缩期杂音变响 C. 肺动脉瓣区第2音明显变弱 D. 右心室收缩期负荷增加 E. 心电图示左心室肥厚
A. 正确 B. 错误
A. 收缩期杂音较前增强 B. 收缩期杂音减弱甚至消失 C. 出现舒张期杂音 D. 出现连续性杂音 E. P2消失
A. In case there is no more seat for late participants. B. In order to attract more participants. C. To encourage people to discover how useful the conference is. D. To avoid disappointment.