单项选择题 患者女性30岁，宫内妊娠39周，临产十小时，骨盆正常，胎心148次/分,ROP,宫缩20秒。7～8分钟一次,宫口开大3cm,S-1，羊水清，目前处理正确的是（ ）A.肌注盐酸哌替啶B.抬高双脚，防脐带脱垂C.静滴缩宫素待D.宫口开全阴道待产E.剖宫产
单项选择题 Which of the following is not true about mechanical practice in grammar practice? ( )A.Mechanical practice involved activities that are aimed at form accuracy.B.By doing mechanical practice, the students pay repeated attention to a key element in a structure.C.Substitution and transformation drills are most frequently used in mechanical practice.D.There is a clear cut between mechanical and meaningful practice.
单项选择题 ( )A.B.C.D.