24岁，C2P1，孕30周， * * 流血3天，增多2小时，急诊入院，查血压12.0/8．0kPa(90/60mmHg)，脉搏：112次/分，宫底剑突下三横指，臀先露，LSA，胎心：136次/分，有规则宫缩。为进一步确诊，首无下列哪项检查

A．肛查
B． * * 检查
C．B型超声检查
D．颈管内指诊
E．腹部平片

The audience were ________ by his ________ performance on the stage.

A．amazed; amazed

B．amazed; amazing

C．amazing; amazed

D．amazing; amazing