When I met my teacher and wanted to express how grateful I was, words _________ me.

A．stopped

B．defeated

C．beat

D．failed

初孕妇，25岁，妊娠38周，胎头双顶径9.2cm，男型骨盆。预计临产后下列哪项不易发生

A．持续性枕后位

B．持续性枕横位

C．第一产程潜伏期延长

D．第一产程活跃期停滞

E．第二产程延长