单项选择题 30岁，G1P0孕39周，因阴道见红，偶感腹坠入院，人院2天每于夜晚感明显腹坠，但无规律宫缩，晨起后消失，肛查盆骨正常，宫颈部分消失，宫口未开，先露S一1．5，产妇感疲乏无力此时应采取的最适宜的处理措施是：A.静脉点滴催产素B.肌肉注射杜冷丁C.剖宫产术D.人工破膜引产术E.等待自然分娩

单项选择题 沥青路面再生方式分为厂拌热再生、就地热再生、厂拌冷再生、就地冷再生和全深式冷再生等5种。 A、正确 B、错误

单项选择题 With the help of their professor, these students will learn to program their robot to do _____ they wanted it to do.  A、whatever B、wherever C、whenever D、whichever