初产妇,临产14h,宫颈口开大6cm,宫缩规律,胎心正常,胎头己入盆,胎膜未破,可触及前沿羊水囊。考虑首选的处理措施是( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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