A. 泵超压； B. 超负荷； C. 泵抽空； D. 流量增加。
A. 右心室流出道狭窄 B. 肺动脉瓣狭窄 C. 肺动脉主干狭窄 D. 包括以上三项 E. 肺动脉瓣赘生物形成
A. of their radical political views B. they were guilty of killing two people C. they were members of KKK D. they stole$16,000
微信支付 
支付宝支付