A. 胎儿先露异常 B. 孕妇盆腔器官异常 C. 多胎妊娠 D. 胎盆不称 E. 头盆不称
A. 5 B. 10 C. 15 D. 30
A. It is dry. B. It is moist. C. It is mild. D. It is changeable