患者妊娠早期,阴道反复少量出血,腹胀坠作痛。其诊断是() ["胎漏","堕胎","胎动不安","小产","暗产"]
玉米对吸收磷的最大量的时期是()。 ["苗期","大喇叭口期至灌浆期","生育后期"]
过期妊娠的描述恰当的是() ["平素月经规律,从末次月经第1天起超过临产者","平素月经规律,从末次月经第1天起达到或超过临产者","平素月经规律,从末次月经第1天起超过临产者","平素月经规律,从末次月经第1天起达到或超过临产者","以上都不是"]
以上孕妇大约多少周后产生血型抗体() ["A.26周
","B.24周
","C.28周
","D.30周
E.32周"]
输卵管吻合术的时间应在()。 ["月经前3~7天","月经后3~7天","月经前5~9天","月经后5~9天","月经期2~8天"]
轴