孕妇,28岁,妊娠42周,无临产迹象就诊。查体:宫高32cm,枕左前位,胎头已衔接,胎心率120/min,进行缩宫素激惹试验,宫缩时重复出现晚期减速。应考虑的病因是( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
免费的网站请分享给朋友吧