单项选择题
第Ⅰ房间隔与心内膜垫之间的孔:
单项选择题 主动脉或肺动脉狭窄:
单项选择题 使子宫内膜发生增生期变化:
单项选择题 Although he was in a bad() of health, he remained() by light of candles.state;readingB. condition; to readC. posision; readingD. situation reading